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run code in 150+ php & hhvm versions
Bugs & Features
<?php function parseCss($rawText) { $selections = preg_match($text,"/\/\* customize_(.+?) \*\/(.+?)\/\* customize_\1 \*\//"); print_r($selections); } parseCss(" #page #header #logo a { /* customize_header_logo */ color: #ffffff; /* customize_header_logo */ /* customize_header_logo_text */ font: normal bold 32px Arial; /* customize_header_logo_text */ text-decoration:none; }");
Output for 5.0.4 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: text in /in/hFGY8 on line 4 Warning: preg_match(): Empty regular expression in /in/hFGY8 on line 4
Output for hhvm-3.12.0
Notice: Undefined variable: text in /in/hFGY8 on line 4 Warning: Empty regular expression in /in/hFGY8 on line 4
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.11 - 5.0.3
Notice: Undefined variable: text in /in/hFGY8 on line 4 Warning: preg_match(): Empty regular expression in /in/hFGY8 on line 4
Output for 4.3.0 - 4.3.10
Notice: Undefined variable: text in /in/hFGY8 on line 4 Warning: Empty regular expression in /in/hFGY8 on line 4