<?php
$a = "define('DB_PASSWORD', 'fuuu'); fuuu";
$b = 'define("DB_PASSWORD", "fuuu"); fuuu';
$c = 'DEFINE("DB_PASSWORD", "fuuu"); fuuu';
$d = "DEFINE('DB_PASSWORD', 'fuuu'); fuuu";
echo preg_replace('/define\([\'\"]db_password[\'\"],\s*[\'\"]fuuu[\'\"]/', 'define("DB_PASSWORD", "123456")', $a) . "\n";
echo preg_replace('/define\([\'\"]db_password[\'\"],\s*[\'\"]fuuu[\'\"]/', 'define("DB_PASSWORD", "123456")', $b) . "\n";
echo preg_replace('/define\([\'\"]db_password[\'\"],\s*[\'\"]fuuu[\'\"]/', 'define("DB_PASSWORD", "123456")', $c) . "\n";
echo preg_replace('/define\([\'\"]db_password[\'\"],\s*[\'\"]fuuu[\'\"]/', 'define("DB_PASSWORD", "123456")', $d) . "\n";
preferences:
49.46 ms | 402 KiB | 5 Q