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@@ -1,599 +0,0 @@
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-<?php
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-/**
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- * \file dev/initdata/dbf/includes/dbase.class.php
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- * \ingroup dev
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- * \brief Class to manage DBF databases
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- */
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-
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-// source : https://github.com/donfbecker/php-dbase
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-
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-define('DBASE_RDONLY', 0);
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-define('DBASE_WRONLY', 1);
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-define('DBASE_RDWR', 2);
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-define('DBASE_TYPE_DBASE', 0);
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-define('DBASE_TYPE_FOXPRO', 1);
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-
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-/**
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- * Class for DBase
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- */
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-class DBase
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-{
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- private $fd;
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- private $headerLength = 0;
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- private $fields = array();
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- private $fieldCount = 0;
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- private $recordLength = 0;
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- private $recordCount = 0;
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-
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- /**
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- * resource dbase_open
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- * @param string $filename filename
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- * @param int $mode mode
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- * @return DBase
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- */
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- public static function open($filename, $mode)
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- {
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- if (!file_exists($filename)) {
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- return false;
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- }
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- $modes = array('r', 'w', 'r+');
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- $mode = $modes[$mode];
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- $fd = fopen($filename, $mode);
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- if (!$fd) {
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- return false;
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- }
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- return new DBase($fd);
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- }
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-
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- /**
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- * resource dbase_create
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- * @param string $filename filename
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- * @param array $fields fields
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- * @param int $type DBASE_TYPE_DBASE
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- * @return DBase
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- */
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- public static function create($filename, $fields, $type = DBASE_TYPE_DBASE)
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- {
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- if (file_exists($filename)) {
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- return false;
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- }
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- $fd = fopen($filename, 'c+');
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- if (!$fd) {
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- return false;
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- }
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- // Byte 0 (1 byte): Valid dBASE for DOS file; bits 0-2 indicate version number, bit 3
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- // indicates the presence of a dBASE for DOS memo file, bits 4-6 indicate the
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- // presence of a SQL table, bit 7 indicates the presence of any memo file
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- // (either dBASE m PLUS or dBASE for DOS)
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- self::putChar8($fd, 5);
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- // Byte 1-3 (3 bytes): Date of last update; formatted as YYMMDD
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- self::putChar8($fd, date('Y') - 1900);
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- self::putChar8($fd, date('m'));
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- self::putChar8($fd, date('d'));
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- // Byte 4-7 (32-bit number): Number of records in the database file. Currently 0
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- self::putInt32($fd, 0);
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- // Byte 8-9 (16-bit number): Number of bytes in the header.
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- self::putInt16($fd, 32 + (32 * count($fields)) + 1);
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- // Byte 10-11 (16-bit number): Number of bytes in record.
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- // Make sure the include the byte for deleted flag
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- $len = 1;
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- foreach ($fields as &$field) {
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- $len += self::length($field);
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- }
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- self::putInt16($fd, $len);
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- // Byte 12-13 (2 bytes): Reserved, 0 filled.
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- self::putInt16($fd, 0);
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- // Byte 14 (1 byte): Flag indicating incomplete transaction
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- // The ISMARKEDO function checks this flag. BEGIN TRANSACTION sets it to 1, END TRANSACTION and ROLLBACK reset it to 0.
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- self::putChar8($fd, 0);
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- // Byte 15 (1 byte): Encryption flag. If this flag is set to 1, the message Database encrypted appears. Changing this flag to 0 removes the message, but does not decrypt the file.
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- self::putChar8($fd, 0);
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- // Byte 16-27 (12 bytes): Reserved for dBASE for DOS in a multi-user environment
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- self::putInt32($fd, 0);
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- self::putInt32($fd, 0);
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- self::putInt32($fd, 0);
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- // Byte 28 (1 byte): Production .mdx file flag; 0x01 if there is a production .mdx file, 0x00 if not
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- self::putChar8($fd, 0);
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- // Byte 29 (1 byte): Language driver ID
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- // (no clue what this is)
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- self::putChar8($fd, 0);
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- // Byte 30-31 (2 bytes): Reserved, 0 filled.
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- self::putInt16($fd, 0);
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- // Byte 32 - n (32 bytes each): Field descriptor array
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- foreach ($fields as &$field) {
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- self::putString($fd, $field[0], 11); // Byte 0 - 10 (11 bytes): Field name in ASCII (zero-filled)
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- self::putString($fd, $field[1], 1); // Byte 11 (1 byte): Field type in ASCII (C, D, F, L, M, or N)
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- self::putInt32($fd, 0); // Byte 12 - 15 (4 bytes): Reserved
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- self::putChar8($fd, self::length($field)); // Byte 16 (1 byte): Field length in binary. The maximum length of a field is 254 (0xFE).
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- self::putChar8($fd, $field[3]); // Byte 17 (1 byte): Field decimal count in binary
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- self::putInt16($fd, 0); // Byte 18 - 19 (2 bytes): Work area ID
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- self::putChar8($fd, 0); // Byte 20 (1 byte): Example (??)
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- self::putInt32($fd, 0); // Byte 21 - 30 (10 bytes): Reserved
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- self::putInt32($fd, 0);
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- self::putInt16($fd, 0);
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- self::putChar8($fd, 0); // Byte 31 (1 byte): Production MDX field flag; 1 if field has an index tag in the production MDX file, 0 if not
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- }
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- // Byte n + 1 (1 byte): 0x0D as the field descriptor array terminator
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- self::putChar8($fd, 0x0D);
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- return new DBase($fd);
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- }
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-
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- /**
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- * Create DBase instance
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- * @param mixed $fd file descriptor
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- * @return void
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- */
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- private function __construct($fd)
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- {
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- $this->fd = $fd;
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- // Byte 4-7 (32-bit number): Number of records in the database file. Currently 0
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- fseek($this->fd, 4, SEEK_SET);
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- $this->recordCount = self::getInt32($fd);
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- // Byte 8-9 (16-bit number): Number of bytes in the header.
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- fseek($this->fd, 8, SEEK_SET);
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- $this->headerLength = self::getInt16($fd);
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- // Number of fields is (headerLength - 33) / 32)
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- $this->fieldCount = ($this->headerLength - 33) / 32;
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- // Byte 10-11 (16-bit number): Number of bytes in record.
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- fseek($this->fd, 10, SEEK_SET);
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- $this->recordLength = self::getInt16($fd);
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- // Byte 32 - n (32 bytes each): Field descriptor array
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- fseek($fd, 32, SEEK_SET);
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- for ($i = 0; $i < $this->fieldCount; $i++) {
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- $data = fread($this->fd, 32);
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- $field = array_map('trim', unpack('a11name/a1type/c4/c1length/c1precision/s1workid/c1example/c10/c1production', $data));
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- $this->fields[] = $field;
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- }
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- }
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-
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- /**
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- * dbase_close
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- * @return void
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- */
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- public function close()
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- {
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- fclose($this->fd);
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_get_header_info
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- * @return array
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- */
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- public function get_header_info()
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- {
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- // phpcs:disable
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- return $this->fields;
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- }
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-
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- /**
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- * dbase_numfields
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- * @return int
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- */
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- public function numfields()
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- {
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- return $this->fieldCount;
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- }
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-
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- /**
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- * dbase_numrecords
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- * @return int
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- */
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- public function numrecords()
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- {
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- return $this->recordCount;
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_add_record
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- * @param array $record record
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- * @return bool
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- */
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- public function add_record($record)
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- {
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- // phpcs:enable
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- if (count($record) != $this->fieldCount) {
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- return false;
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- }
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- // Seek to end of file, minus the end of file marker
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- fseek($this->fd, 0, SEEK_END);
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- // Put the deleted flag
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- self::putChar8($this->fd, 0x20);
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- // Put the record
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- if (!$this->putRecord($record)) {
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- return false;
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- }
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- // Update the record count
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- fseek($this->fd, 4);
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- self::putInt32($this->fd, ++$this->recordCount);
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- return true;
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_replace_record
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- * @param array $record record
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- * @param int $record_number record number
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- * @return bool
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- */
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- public function replace_record($record, $record_number)
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- {
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- // phpcs:enable
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- if (count($record) != $this->fieldCount) {
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- return false;
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- }
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- if ($record_number < 1 || $record_number > $this->recordCount) {
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- return false;
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- }
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- // Skip to the record location, plus the 1 byte for the deleted flag
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- fseek($this->fd, $this->headerLength + ($this->recordLength * ($record_number - 1)) + 1);
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- return $this->putRecord($record);
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_delete_record
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- * @param int $record_number record number
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- * @return bool
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- */
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- public function delete_record($record_number)
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- {
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- // phpcs:enable
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- if ($record_number < 1 || $record_number > $this->recordCount) {
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- return false;
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- }
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- fseek($this->fd, $this->headerLength + ($this->recordLength * ($record_number - 1)));
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- self::putChar8($this->fd, 0x2A);
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- return true;
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_get_record
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- * @param int $record_number record number
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- * @return array
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- */
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- public function get_record($record_number)
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- {
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- // phpcs:enable
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- if ($record_number < 1 || $record_number > $this->recordCount) {
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- return false;
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- }
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- fseek($this->fd, $this->headerLength + ($this->recordLength * ($record_number - 1)));
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- $record = array(
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- 'deleted' => self::getChar8($this->fd) == 0x2A ? 1 : 0
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- );
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- foreach ($this->fields as $i => &$field) {
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- $value = trim(fread($this->fd, $field['length']));
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- if ($field['type'] == 'L') {
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- $value = strtolower($value);
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- if ($value == 't' || $value == 'y') {
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- $value = true;
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- } elseif ($value == 'f' || $value == 'n') {
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- $value = false;
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- } else {
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- $value = null;
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- }
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- }
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- $record[$i] = $value;
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- }
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- return $record;
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- }
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-
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- // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
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- /**
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- * dbase_get_record_with_names
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- * @param int $record_number record number
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- * @return array
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- */
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- public function get_record_with_names($record_number)
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- {
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- // phpcs:enable
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- if ($record_number < 1 || $record_number > $this->recordCount) {
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- return false;
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- }
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- $record = $this->get_record($record_number);
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- foreach ($this->fields as $i => &$field) {
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- $record[$field['name']] = $record[$i];
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- unset($record[$i]);
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- }
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- return $record;
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- }
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-
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- /**
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- * dbase_pack
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- * @return void
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- */
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- public function pack()
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- {
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- $in_offset = $out_offset = $this->headerLength;
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- $new_count = 0;
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- $rec_count = $this->recordCount;
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- while ($rec_count > 0) {
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- fseek($this->fd, $in_offset, SEEK_SET);
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- $record = fread($this->fd, $this->recordLength);
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- $deleted = substr($record, 0, 1);
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- if ($deleted != '*') {
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- fseek($this->fd, $out_offset, SEEK_SET);
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- fwrite($this->fd, $record);
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- $out_offset += $this->recordLength;
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- $new_count++;
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- }
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- $in_offset += $this->recordLength;
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- $rec_count--;
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- }
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- ftruncate($this->fd, $out_offset);
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- // Update the record count
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- fseek($this->fd, 4);
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- self::putInt32($this->fd, $new_count);
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- }
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-
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- /*
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- * A few utilitiy functions
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- */
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-
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- /**
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- * @param string $field field
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- * @return int
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- */
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- private static function length($field)
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- {
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- switch ($field[1]) {
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- case 'D': // Date: Numbers and a character to separate month, day, and year (stored internally as 8 digits in YYYYMMDD format)
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- return 8;
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- case 'T': // DateTime (YYYYMMDDhhmmss.uuu) (FoxPro)
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- return 18;
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- case 'M': // Memo (ignored): All ASCII characters (stored internally as 10 digits representing a .dbt block number, right justified, padded with whitespaces)
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- case 'N': // Number: -.0123456789 (right justified, padded with whitespaces)
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- case 'F': // Float: -.0123456789 (right justified, padded with whitespaces)
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- case 'C': // String: All ASCII characters (padded with whitespaces up to the field's length)
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- return $field[2];
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- case 'L': // Boolean: YyNnTtFf? (? when not initialized)
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- return 1;
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- }
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- return 0;
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- }
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-
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- /*
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- * Functions for reading and writing bytes
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- */
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-
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- /**
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- * getChar8
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- * @param mixed $fd file descriptor
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- * @return int
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- */
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- private static function getChar8($fd)
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- {
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- return ord(fread($fd, 1));
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- }
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-
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- /**
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- * putChar8
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- * @param mixed $fd file descriptor
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- * @param mixed $value value
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- * @return bool
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- */
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- private static function putChar8($fd, $value)
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- {
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- return fwrite($fd, chr($value));
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- }
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-
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- /**
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- * getInt16
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- * @param mixed $fd file descriptor
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- * @param int $n n
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- * @return bool
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- */
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- private static function getInt16($fd, $n = 1)
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- {
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- $data = fread($fd, 2 * $n);
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- $i = unpack("S$n", $data);
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- if ($n == 1) {
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- return (int) $i[1];
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- } else {
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- return array_merge($i);
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- }
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- }
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-
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- /**
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- * putInt16
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- * @param mixed $fd file descriptor
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- * @param mixed $value value
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- * @return bool
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- */
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- private static function putInt16($fd, $value)
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- {
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|
- return fwrite($fd, pack('S', $value));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * getInt32
|
|
|
- * @param mixed $fd file descriptor
|
|
|
- * @param int $n n
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- private static function getInt32($fd, $n = 1)
|
|
|
- {
|
|
|
- $data = fread($fd, 4 * $n);
|
|
|
- $i = unpack("L$n", $data);
|
|
|
- if ($n == 1) {
|
|
|
- return (int) $i[1];
|
|
|
- } else {
|
|
|
- return array_merge($i);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * putint32
|
|
|
- * @param mixed $fd file descriptor
|
|
|
- * @param mixed $value value
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- private static function putInt32($fd, $value)
|
|
|
- {
|
|
|
- return fwrite($fd, pack('L', $value));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * putString
|
|
|
- * @param mixed $fd file descriptor
|
|
|
- * @param mixed $value value
|
|
|
- * @param int $length length
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- private static function putString($fd, $value, $length = 254)
|
|
|
- {
|
|
|
- $ret = fwrite($fd, pack('A' . $length, $value));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * putRecord
|
|
|
- * @param mixed $record record
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- private function putRecord($record)
|
|
|
- {
|
|
|
- foreach ($this->fields as $i => &$field) {
|
|
|
- $value = $record[$i];
|
|
|
- // Number types are right aligned with spaces
|
|
|
- if ($field['type'] == 'N' || $field['type'] == 'F' && strlen($value) < $field['length']) {
|
|
|
- $value = str_repeat(' ', $field['length'] - strlen($value)) . $value;
|
|
|
- }
|
|
|
- self::putString($this->fd, $value, $field['length']);
|
|
|
- }
|
|
|
- return true;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-if (!function_exists('dbase_open')) {
|
|
|
- /**
|
|
|
- * dbase_open
|
|
|
- * @param string $filename filename
|
|
|
- * @param int $mode mode
|
|
|
- * @return DBase
|
|
|
- */
|
|
|
- function dbase_open($filename, $mode)
|
|
|
- {
|
|
|
- return DBase::open($filename, $mode);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_create
|
|
|
- * @param string $filename filename
|
|
|
- * @param array $fields fields
|
|
|
- * @param int $type type
|
|
|
- * @return DBase
|
|
|
- */
|
|
|
- function dbase_create($filename, $fields, $type = DBASE_TYPE_DBASE)
|
|
|
- {
|
|
|
- return DBase::create($filename, $fields, $type);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_close
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_close($dbase_identifier)
|
|
|
- {
|
|
|
- return $dbase_identifier->close();
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_get_header_info
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @return string
|
|
|
- */
|
|
|
- function dbase_get_header_info($dbase_identifier)
|
|
|
- {
|
|
|
- return $dbase_identifier->get_header_info();
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_numfields
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @return int
|
|
|
- */
|
|
|
- function dbase_numfields($dbase_identifier)
|
|
|
- {
|
|
|
- $dbase_identifier->numfields();
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_numrecords
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @return int
|
|
|
- */
|
|
|
- function dbase_numrecords($dbase_identifier)
|
|
|
- {
|
|
|
- return $dbase_identifier->numrecords();
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_add_record
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @param array $record record
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_add_record($dbase_identifier, $record)
|
|
|
- {
|
|
|
- return $dbase_identifier->add_record($record);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_delete_record
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @param int $record_number record number
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_delete_record($dbase_identifier, $record_number)
|
|
|
- {
|
|
|
- return $dbase_identifier->delete_record($record_number);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_replace_record
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @param array $record record
|
|
|
- * @param int $record_number record number
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_replace_record($dbase_identifier, $record, $record_number)
|
|
|
- {
|
|
|
- return $dbase_identifier->replace_record($record, $record_number);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_get_record
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @param int $record_number record number
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_get_record($dbase_identifier, $record_number)
|
|
|
- {
|
|
|
- return $dbase_identifier->get_record($record_number);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_get_record_with_names
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @param int $record_number record number
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_get_record_with_names($dbase_identifier, $record_number)
|
|
|
- {
|
|
|
- return $dbase_identifier->get_record_with_names($record_number);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * dbase_pack
|
|
|
- * @param Resource $dbase_identifier dbase identifier
|
|
|
- * @return bool
|
|
|
- */
|
|
|
- function dbase_pack($dbase_identifier)
|
|
|
- {
|
|
|
- return $dbase_identifier->pack();
|
|
|
- }
|
|
|
-}
|
Laurent Destailleur