/**
* Returns string processed by sqlite_udf_encode_binary() to ensure that binary contents will be handled correctly by sqlite.
* @param mixed $blob Blob or string
* @return string encoded text
*/
protected function getBlobSql($blob)
{
// they took magic __toString() out of PHP5.0.0; this sucks
if (is_object($blob)) {
$blob = $blob->__toString();
}
return "'" . sqlite_udf_encode_binary($blob) . "'";
}
/**
* Applies sqlite_udf_encode_binary() to ensure that binary contents will be handled correctly by sqlite.
* @see PreparedStatement::setBlob()
* @see ResultSet::getBlob()
*/
function setBlob($paramIndex, $blob)
{
if ($blob === null) {
$this->setNull($paramIndex);
} else {
// they took magic __toString() out of PHP5.0.0; this sucks
if (is_object($blob)) {
$blob = $blob->__toString();
}
$this->boundInVars[$paramIndex] = "'" . sqlite_udf_encode_binary($blob) . "'";
}
}
function sqlitem_udf_encode_binary($data)
{
die('sqlitem_udf_encode_binary not implemented in PDO');
return sqlite_udf_encode_binary($data);
}
public function quoteBinary($data)
{
return "'" . sqlite_udf_encode_binary($data) . "'";
}
function sqlitem_udf_encode_binary($data)
{
return sqlite_udf_encode_binary($data);
}
/**
* This method return encoded binary data
*
* @param string $file name/path of file
* @access public
* @return string
*/
function encodeBinary($file)
{
if (file_exists($file) && is_readable($file)) {
$fr = fopen($file, 'rb');
do {
$data = fread($fr, 1024);
if (strlen($data) == '') {
break;
}
$content .= $data;
} while (true);
return sqlite_udf_encode_binary($content);
} else {
$this->_showError('Impossible find file');
}
}
function GetBLOBFieldValue($prepared_query, $parameter, $blob, &$value)
{
for ($value = "'"; !MetabaseEndOfLOB($blob);) {
if (!MetabaseReadLOB($blob, $data, $this->lob_buffer_length)) {
$value = "";
return $this->SetError("Get BLOB field value", MetabaseLOBError($blob));
}
$value .= sqlite_udf_encode_binary($data);
}
$value .= "'";
return 1;
}
<?php
// string escaping
$str = "foo ' '' \\' \\ \" \\\"";
echo sqlite_escape_string($str) . "\n";
$str = "this has a " . chr(0) . " char in the middle";
echo sqlite_escape_string($str) . "\n";
// encodeing/decoding binary
$data = array("hello there", "this has a " . chr(0) . " char in the middle", chr(1) . " this has an 0x01 at the start", "this has " . chr(1) . " in the middle", "");
foreach ($data as $item) {
echo "raw: {$item}\n";
$coded = sqlite_udf_encode_binary($item);
echo "coded: {$coded}\n";
$decoded = sqlite_udf_decode_binary($coded);
echo "decoded: {$decoded}\n";
if ($item != $decoded) {
echo "FAIL:\n";
echo "[{$item}]\n";
echo "[{$decoded}]\n";
}
}
?>
function most_similar_finalize(&$context)
{
// encode the data so that it can be safely retrieved
return sqlite_udf_encode_binary($context['title']);
}
function dbi_update_blob($table, $column, $key, $data)
{
global $unavail_DBI_Update_blob;
$unavail_DBI_Update_blob = str_replace('XXX', '"dbi_update_blob"', translate('Unfortunately, XXX is not implemented for')) . ' (' . $GLOBALS['db_type'] . ').';
assert('! empty ( $table )');
assert('! empty ( $column )');
assert('! empty ( $key )');
assert('! empty ( $data )');
$sql = 'UPDATE ' . $table . ' SET ' . $column;
if (strcmp($GLOBALS['db_type'], 'mysql') == 0) {
return dbi_execute($sql . ' = \'' . (function_exists('mysql_real_escape_string') ? mysql_real_escape_string($data) : addslashes($data)) . '\' WHERE ' . $key);
} elseif (strcmp($GLOBALS['db_type'], 'sqlite') == 0) {
return dbi_execute($sql . ' = \'' . sqlite_udf_encode_binary($data) . '\' WHERE ' . $key);
} elseif (strcmp($GLOBALS['db_type'], 'mssql') == 0) {
return dbi_execute($sql . ' = 0x' . bin2hex($data) . ' WHERE ' . $key);
} elseif (strcmp($GLOBALS['db_type'], 'postgresql') == 0) {
return dbi_execute($sql . ' = \'' . pg_escape_bytea($data) . '\' WHERE ' . $key);
} else {
// TODO!
die_miserable_death($unavail_DBI_Update_blob);
}
}
