170 lines
4.1 KiB
PHP
170 lines
4.1 KiB
PHP
<?php
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/*
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version V5.06 16 Oct 2008 (c) 2000-2008 John Lim (jlim#natsoft.com). All rights
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reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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Latest version is available at http://adodb.sourceforge.net
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21.02.2002 - Wade Johnson wade@wadejohnson.de
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Extended ODBC class for Sybase SQLAnywhere.
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1) Added support to retrieve the last row insert ID on tables with
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primary key column using autoincrement function.
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2) Added blob support. Usage:
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a) create blob variable on db server:
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$dbconn->create_blobvar($blobVarName);
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b) load blob var from file. $filename must be complete path
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$dbcon->load_blobvar_from_file($blobVarName, $filename);
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c) Use the $blobVarName in SQL insert or update statement in the values
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clause:
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$recordSet = $dbconn->Execute('INSERT INTO tabname (idcol, blobcol) '
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.
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'VALUES (\'test\', ' . $blobVarName . ')');
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instead of loading blob from a file, you can also load from
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an unformatted (raw) blob variable:
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$dbcon->load_blobvar_from_var($blobVarName, $varName);
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d) drop blob variable on db server to free up resources:
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$dbconn->drop_blobvar($blobVarName);
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Sybase_SQLAnywhere data driver. Requires ODBC.
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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if (!defined('_ADODB_ODBC_LAYER')) {
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include(ADODB_DIR."/drivers/adodb-odbc.inc.php");
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}
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if (!defined('ADODB_SYBASE_SQLANYWHERE')){
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define('ADODB_SYBASE_SQLANYWHERE',1);
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class ADODB_sqlanywhere extends ADODB_odbc {
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var $databaseType = "sqlanywhere";
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var $hasInsertID = true;
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function ADODB_sqlanywhere()
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{
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$this->ADODB_odbc();
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}
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function _insertid() {
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return $this->GetOne('select @@identity');
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}
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function create_blobvar($blobVarName) {
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$this->Execute("create variable $blobVarName long binary");
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return;
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}
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function drop_blobvar($blobVarName) {
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$this->Execute("drop variable $blobVarName");
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return;
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}
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function load_blobvar_from_file($blobVarName, $filename) {
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$chunk_size = 1000;
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$fd = fopen ($filename, "rb");
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$integer_chunks = (integer)filesize($filename) / $chunk_size;
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$modulus = filesize($filename) % $chunk_size;
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if ($modulus != 0){
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$integer_chunks += 1;
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}
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for($loop=1;$loop<=$integer_chunks;$loop++){
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$contents = fread ($fd, $chunk_size);
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$contents = bin2hex($contents);
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$hexstring = '';
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for($loop2=0;$loop2<strlen($contents);$loop2+=2){
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$hexstring .= '\x' . substr($contents,$loop2,2);
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}
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$hexstring = $this->qstr($hexstring);
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$this->Execute("set $blobVarName = $blobVarName || " . $hexstring);
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}
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fclose ($fd);
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return;
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}
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function load_blobvar_from_var($blobVarName, &$varName) {
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$chunk_size = 1000;
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$integer_chunks = (integer)strlen($varName) / $chunk_size;
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$modulus = strlen($varName) % $chunk_size;
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if ($modulus != 0){
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$integer_chunks += 1;
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}
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for($loop=1;$loop<=$integer_chunks;$loop++){
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$contents = substr ($varName, (($loop - 1) * $chunk_size), $chunk_size);
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$contents = bin2hex($contents);
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$hexstring = '';
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for($loop2=0;$loop2<strlen($contents);$loop2+=2){
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$hexstring .= '\x' . substr($contents,$loop2,2);
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}
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$hexstring = $this->qstr($hexstring);
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$this->Execute("set $blobVarName = $blobVarName || " . $hexstring);
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}
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return;
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}
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/*
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Insert a null into the blob field of the table first.
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Then use UpdateBlob to store the blob.
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Usage:
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$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
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$conn->UpdateBlob('blobtable','blobcol',$blob,'id=1');
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*/
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function UpdateBlob($table,$column,&$val,$where,$blobtype='BLOB')
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{
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$blobVarName = 'hold_blob';
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$this->create_blobvar($blobVarName);
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$this->load_blobvar_from_var($blobVarName, $val);
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$this->Execute("UPDATE $table SET $column=$blobVarName WHERE $where");
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$this->drop_blobvar($blobVarName);
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return true;
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}
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}; //class
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class ADORecordSet_sqlanywhere extends ADORecordSet_odbc {
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var $databaseType = "sqlanywhere";
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function ADORecordSet_sqlanywhere($id,$mode=false)
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{
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$this->ADORecordSet_odbc($id,$mode);
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}
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}; //class
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} //define
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?>
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