3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '/(?<!<br>)(?<!\s)\s*(\((?:(?:(?!<br>|\(|\)).)*(?:\((?:(?!<br>|\(|\)).)*\))?)*?\))\s*(\{)/si'; $test_string = '(""L"",function(){})'; echo preg_replace($regex,' $1 $2',$test_string);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.5, 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
(""L"",function () {})
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Output for 4.4.6 - 4.4.8
(""L"",function(){})

preferences:
292.99 ms | 401 KiB | 457 Q