3 version V4.22 15 Apr 2004 (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights
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12 21.02.2002 - Wade Johnson wade@wadejohnson.de
13 Extended ODBC class for Sybase SQLAnywhere.
14 1) Added support to retrieve the last row insert ID on tables with
15 primary key column using autoincrement function.
17 2) Added blob support. Usage:
18 a) create blob variable on db server:
20 $dbconn->create_blobvar($blobVarName);
22 b) load blob var from file. $filename must be complete path
24 $dbcon->load_blobvar_from_file($blobVarName, $filename);
26 c) Use the $blobVarName in SQL insert or update statement in the values
29 $recordSet = $dbconn->Execute('INSERT INTO tabname (idcol, blobcol) '
31 'VALUES (\'test\', ' . $blobVarName . ')');
33 instead of loading blob from a file, you can also load from
34 an unformatted (raw) blob variable:
35 $dbcon->load_blobvar_from_var($blobVarName, $varName);
37 d) drop blob variable on db server to free up resources:
38 $dbconn->drop_blobvar($blobVarName);
40 Sybase_SQLAnywhere data driver. Requires ODBC.
44 if (!defined('_ADODB_ODBC_LAYER')) {
45 include(ADODB_DIR . "/drivers/adodb-odbc.inc.php");
48 if (!defined('ADODB_SYBASE_SQLANYWHERE')) {
50 define('ADODB_SYBASE_SQLANYWHERE', 1);
52 class ADODB_sqlanywhere extends ADODB_odbc
54 var $databaseType = "sqlanywhere";
55 var $hasInsertID = true;
57 function ADODB_sqlanywhere()
64 return $this->GetOne('select @@identity');
67 function create_blobvar($blobVarName)
69 $this->Execute("create variable $blobVarName long binary");
73 function drop_blobvar($blobVarName)
75 $this->Execute("drop variable $blobVarName");
79 function load_blobvar_from_file($blobVarName, $filename)
83 $fd = fopen($filename, "rb");
85 $integer_chunks = (integer)filesize($filename) / $chunk_size;
86 $modulus = filesize($filename) % $chunk_size;
91 for ($loop = 1; $loop <= $integer_chunks; $loop++) {
92 $contents = fread($fd, $chunk_size);
93 $contents = bin2hex($contents);
97 for ($loop2 = 0; $loop2 < strlen($contents); $loop2 += 2) {
98 $hexstring .= '\x' . substr($contents, $loop2, 2);
101 $hexstring = $this->qstr($hexstring);
103 $this->Execute("set $blobVarName = $blobVarName || " . $hexstring);
110 function load_blobvar_from_var($blobVarName, &$varName)
114 $integer_chunks = (integer)strlen($varName) / $chunk_size;
115 $modulus = strlen($varName) % $chunk_size;
117 $integer_chunks += 1;
120 for ($loop = 1; $loop <= $integer_chunks; $loop++) {
121 $contents = substr($varName, (($loop - 1) * $chunk_size), $chunk_size);
122 $contents = bin2hex($contents);
126 for ($loop2 = 0; $loop2 < strlen($contents); $loop2 += 2) {
127 $hexstring .= '\x' . substr($contents, $loop2, 2);
130 $hexstring = $this->qstr($hexstring);
132 $this->Execute("set $blobVarName = $blobVarName || " . $hexstring);
139 Insert a null into the blob field of the table first.
140 Then use UpdateBlob to store the blob.
144 $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
145 $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1');
147 function UpdateBlob($table, $column, &$val, $where, $blobtype = 'BLOB')
149 $blobVarName = 'hold_blob';
150 $this->create_blobvar($blobVarName);
151 $this->load_blobvar_from_var($blobVarName, $val);
152 $this->Execute("UPDATE $table SET $column=$blobVarName WHERE $where");
153 $this->drop_blobvar($blobVarName);
160 class ADORecordSet_sqlanywhere extends ADORecordSet_odbc
163 var $databaseType = "sqlanywhere";
165 function ADORecordSet_sqlanywhere($id, $mode = false)
167 $this->ADORecordSet_odbc($id, $mode);