public function bindParam($parameter, &$variable, $data_type = -1, $length = 0, $driver_options = null)
{
if (parent::bindParam($parameter, $variable, $data_type, $length, $driver_options)) {
$this->bind_params_changed = true;
return true;
}
return false;
}
public function prepare(&$statement, &$options)
{
if (!$statement || !is_array($options)) {
return false;
}
$driver_options = $this->driver_options;
foreach ($options as $k => $v) {
if (!$this->setAttribute($k, $v, $driver_options, 'PDO::prepare')) {
return false;
}
}
switch ($this->driver_quote_type) {
case 1:
$params_regex = '/(\'[^\']*(?:\'\'[^\']*)*\')|("[^"\\\\]*(?:\\\\.[^"\\\\]*)*")|([^:])(\\?|:[A-Za-z0-9_\\-]+)/';
break;
case 0:
default:
$params_regex = '/(\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\')|("[^"\\\\]*(?:\\\\.[^"\\\\]*)*")|([^:])(\\?|:[A-Za-z0-9_\\-]+)/';
break;
}
$result = preg_split($params_regex, $statement, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
$param_type = $this->driver_param_type;
$has_named = false;
$has_anon = false;
$warn_text = 'Invalid parameter number: mixed named and positional parameters';
$chunks_num = 0;
$param_num = 0;
$params_info = array();
$named_params = array();
foreach ($result as &$chunk) {
switch ($chunk[0]) {
case ':':
if ($has_anon) {
$this->set_error(0, $warn_text, 'HY093', PDO::ERRMODE_WARNING, 'prepare');
return false;
}
if (isset($named_params[$chunk])) {
$named_params[$chunk]++;
$chunk .= $named_params[$chunk];
} else {
$named_params[$chunk] = 1;
}
$has_named = true;
$param_num++;
switch ($param_type) {
case -1:
$params_info[$chunk] = $chunks_num;
break;
case 1:
$key = $chunk;
$chunk = str_replace('-', '__', $chunk);
$params_info[$key] = $chunk;
break;
case 2:
$params_info[$chunk] = $param_num;
$chunk = '$' . $param_num;
break;
case 0:
$params_info[$chunk] = $param_num;
$chunk = '?';
break;
}
break;
case '?':
if ($has_named) {
$this->set_error(0, $warn_text, 'HY093', PDO::ERRMODE_WARNING, 'prepare');
return false;
}
$has_anon = true;
$param_num++;
switch ($param_type) {
case -1:
$params_info[$param_num] = $chunks_num;
break;
case 1:
$params_info[$param_num] = ':p' . $param_num;
$chunk = $params_info[$param_num];
break;
case 2:
$params_info[$param_num] = $param_num;
$chunk = '$' . $param_num;
break;
case 0:
$params_info[$param_num] = $param_num;
break;
}
break;
}
$chunks_num++;
}
if ($param_type == -1) {
$this->prepared =& $result;
} else {
// Do not explode with a space. A space breaks this in Postgres, because ads a space between 'E' and '\\s+':
// regexp_split_to_table('some string', E'\\s+')
$this->prepared = implode('', $result);
}
$st = phppdo_base_statement::_new_instance($driver_options[PDO::ATTR_STATEMENT_CLASS], $statement);
$st->_setup($this->link, $this, $driver_options, $this->prepared, $params_info);
return $st;
}
protected function _fetch_lob(&$p, &$col)
{
$tmp_file = tempnam(sys_get_temp_dir(), 'phppdo_');
if (!$tmp_file) {
return false;
}
if (!@pg_lo_export($this->_link, $col, $tmp_file)) {
// maybe this is a 'bytea'
return parent::_fetch_lob($p, $col);
}
$p = fopen($tmp_file, 'rb');
if ($p) {
$this->tmp_lobs[$tmp_file] = $p;
}
}
protected function _fetch_lob(&$p, &$col)
{
$tmp_file = tempnam(sys_get_temp_dir(), 'phppdo_');
if (!$tmp_file) {
return false;
}
if (is_object($col)) {
$col->export($tmp_file);
} else {
return parent::_fetch_lob($p, $col);
}
$p = fopen($tmp_file, 'rb');
if ($p) {
$this->tmp_lobs[$tmp_file] = $p;
}
}