friendica/src/Database/Utils.php

66 lines
1.7 KiB
PHP

<?php
namespace Friendica\Database;
class Utils
{
/**
* Convert parameter array to an universal form
*
* @param array $args Parameter array
*
* @return array universalized parameter array
*/
public static function getParameters(array $args)
{
unset($args[0]);
// When the second function parameter is an array then use this as the parameter array
if ((count($args) > 0) && (is_array($args[1]))) {
return $args[1];
} else {
return $args;
}
}
/**
* @brief Replaces ANY_VALUE() function by MIN() function,
* if the database server does not support ANY_VALUE().
*
* Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
* ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
* A standard fall-back is to use MIN().
*
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
public static function anyValueFallback($sql) {
$server_info = self::serverInfo();
if (version_compare($server_info, '5.7.5', '<') ||
(stripos($server_info, 'MariaDB') !== false)) {
$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
}
return $sql;
}
/**
* @brief beautifies the query - useful for "SHOW PROCESSLIST"
*
* This is safe when we bind the parameters later.
* The parameter values aren't part of the SQL.
*
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
public static function cleanQuery($sql) {
$search = ["\t", "\n", "\r", " "];
$replace = [' ', ' ', ' ', ' '];
do {
$oldsql = $sql;
$sql = str_replace($search, $replace, $sql);
} while ($oldsql != $sql);
return $sql;
}
}