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Charlie Root
2023-03-20 12:18:38 +01:00
commit a096ce07cf
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307
dotclear._no/inc/libs/clearbricks/dblayer/class.mysqli.php Normal file
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<?php
/**
* @class mysqliConnection
* @brief MySQLi Database Driver
*
* See the {@link dbLayer} documentation for common methods.
*
* @package Clearbricks
* @subpackage DBLayer
*
* @copyright Olivier Meunier & Association Dotclear
* @copyright GPL-2.0-only
*/
/** @cond ONCE */
if (class_exists('dbLayer')) {
/** @endcond */
class mysqliConnection extends dbLayer implements i_dbLayer
{
public static $weak_locks = true; ///< boolean: Enables weak locks if true
protected $__driver = 'mysqli';
protected $__syntax = 'mysql';
public function db_connect($host, $user, $password, $database)
{
if (!function_exists('mysqli_connect')) {
throw new Exception('PHP MySQLi functions are not available');
}
$port = ini_get("mysqli.default_port");
$socket = null;
if (strpos($host, ':') !== false) {
// Port or socket given
$bits = explode(':', $host);
$host = array_shift($bits);
$socket = array_shift($bits);
if (abs((integer) $socket) > 0) {
// TCP/IP connection on given port
$port = abs((integer) $socket);
$socket = null;
} else {
// Socket connection
$port = null;
}
}
if (($link = @mysqli_connect($host, $user, $password, $database, $port, $socket)) === false) {
throw new Exception('Unable to connect to database');
}
$this->db_post_connect($link, $database);
return $link;
}
public function db_pconnect($host, $user, $password, $database)
{
// No pconnect wtih mysqli, below code is for comatibility
return $this->db_connect($host, $user, $password, $database);
}
private function db_post_connect($link, $database)
{
if (version_compare($this->db_version($link), '4.1', '>=')) {
$this->db_query($link, 'SET NAMES utf8');
$this->db_query($link, 'SET CHARACTER SET utf8');
$this->db_query($link, "SET COLLATION_CONNECTION = 'utf8_general_ci'");
$this->db_query($link, "SET COLLATION_SERVER = 'utf8_general_ci'");
$this->db_query($link, "SET CHARACTER_SET_SERVER = 'utf8'");
if (version_compare($this->db_version($link), '8.0', '<')) {
// Setting CHARACTER_SET_DATABASE is obosolete for MySQL 8.0+
$this->db_query($link, "SET CHARACTER_SET_DATABASE = 'utf8'");
}
$link->set_charset("utf8");
}
}
public function db_close($handle)
{
if ($handle instanceof MySQLi) {
mysqli_close($handle);
}
}
public function db_version($handle)
{
if ($handle instanceof MySQLi) {
return mysqli_get_server_info($handle);
}
return;
}
public function db_query($handle, $query)
{
if ($handle instanceof MySQLi) {
$res = @mysqli_query($handle, $query);
if ($res === false) {
$e = new Exception($this->db_last_error($handle));
$e->sql = $query;
throw $e;
}
return $res;
}
}
public function db_exec($handle, $query)
{
return $this->db_query($handle, $query);
}
public function db_num_fields($res)
{
if ($res instanceof MySQLi_Result) {
//return mysql_num_fields($res);
return $res->field_count;
}
return 0;
}
public function db_num_rows($res)
{
if ($res instanceof MySQLi_Result) {
return $res->num_rows;
}
return 0;
}
public function db_field_name($res, $position)
{
if ($res instanceof MySQLi_Result) {
$res->field_seek($position);
$finfo = $res->fetch_field();
return $finfo->name;
}
}
public function db_field_type($res, $position)
{
if ($res instanceof MySQLi_Result) {
$res->field_seek($position);
$finfo = $res->fetch_field();
return $this->_convert_types($finfo->type);
}
}
public function db_fetch_assoc($res)
{
if ($res instanceof MySQLi_Result) {
$v = $res->fetch_assoc();
return ($v === null) ? false : $v;
}
}
public function db_result_seek($res, $row)
{
if ($res instanceof MySQLi_Result) {
return $res->data_seek($row);
}
}
public function db_changes($handle, $res)
{
if ($handle instanceof MySQLi) {
return mysqli_affected_rows($handle);
}
}
public function db_last_error($handle)
{
if ($handle instanceof MySQLi) {
$e = mysqli_error($handle);
if ($e) {
return $e . ' (' . mysqli_errno($handle) . ')';
}
}
return false;
}
public function db_escape_string($str, $handle = null)
{
if ($handle instanceof MySQLi) {
return mysqli_real_escape_string($handle, $str);
}
return addslashes($str);
}
public function db_write_lock($table)
{
try {
$this->execute('LOCK TABLES ' . $this->escapeSystem($table) . ' WRITE');
} catch (Exception $e) {
# As lock is a privilege in MySQL, we can avoid errors with weak_locks static var
if (!self::$weak_locks) {
throw $e;
}
}
}
public function db_unlock()
{
try {
$this->execute('UNLOCK TABLES');
} catch (Exception $e) {
if (!self::$weak_locks) {
throw $e;
}
}
}
public function vacuum($table)
{
$this->execute('OPTIMIZE TABLE ' . $this->escapeSystem($table));
}
public function dateFormat($field, $pattern)
{
$pattern = str_replace('%M', '%i', $pattern);
return 'DATE_FORMAT(' . $field . ',' . "'" . $this->escape($pattern) . "') ";
}
public function orderBy()
{
$default = [
'order' => '',
'collate' => false
];
foreach (func_get_args() as $v) {
if (is_string($v)) {
$res[] = $v;
} elseif (is_array($v) && !empty($v['field'])) {
$v = array_merge($default, $v);
$v['order'] = (strtoupper($v['order']) == 'DESC' ? 'DESC' : '');
$res[] = $v['field'] . ($v['collate'] ? ' COLLATE utf8_unicode_ci' : '') . ' ' . $v['order'];
}
}
return empty($res) ? '' : ' ORDER BY ' . implode(',', $res) . ' ';
}
public function lexFields()
{
$fmt = '%s COLLATE utf8_unicode_ci';
foreach (func_get_args() as $v) {
if (is_string($v)) {
$res[] = sprintf($fmt, $v);
} elseif (is_array($v)) {
$res = array_map(function ($i) use ($fmt) {return sprintf($fmt, $i);}, $v);
}
}
return empty($res) ? '' : implode(',', $res);
}
public function concat()
{
$args = func_get_args();
return 'CONCAT(' . implode(',', $args) . ')';
}
public function escapeSystem($str)
{
return '`' . $str . '`';
}
protected function _convert_types($id)
{
$id2type = [
'1' => 'int',
'2' => 'int',
'3' => 'int',
'8' => 'int',
'9' => 'int',
'16' => 'int', //BIT type recognized as unknown with mysql adapter
'4' => 'real',
'5' => 'real',
'246' => 'real',
'253' => 'string',
'254' => 'string',
'10' => 'date',
'11' => 'time',
'12' => 'datetime',
'13' => 'year',
'7' => 'timestamp',
'252' => 'blob'
];
$type = 'unknown';
if (isset($id2type[$id])) {
$type = $id2type[$id];
}
return $type;
}
}
/** @cond ONCE */
}
/** @endcond */