3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = 'base_url'; $value' = 'new_value'; $config = '$config["base_url"] = "old_value"'; $config = preg_replace('/\[\''.$name.'\'\]\s*=\s*(\'|\")(.*)\\1;/', "['".$name."'] = '$value';", $config); echo '<pre>', var_dump($config), '</pre>';
Output for 5.4.13
Parse error: syntax error, unexpected '' = '' (T_CONSTANT_ENCAPSED_STRING) in /in/b02Kr on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.12
Parse error: syntax error, unexpected '' = '' (T_CONSTANT_ENCAPSED_STRING) in b02Kr on line 3
Process exited with code 255.
Output for 5.3.23
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/tL2Um on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.22
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in b02Kr on line 3
Process exited with code 255.
preferences:
175.55 ms | 1395 KiB | 45 Q