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run code in 200+ php & hhvm versions
Bugs & Features
<?php function replace_spaces ($text) { $replacement = function ($matches) { return str_replace ($matches[1], ' ', '&nbsp;').' '; }; return preg_replace_callback ('/( +) /', $replacement, $text); } echo replace_spaces('hello world');
based on bT8h8
Output for 5.3.0 - 7.2.0
hello world
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/JbX9Q on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/JbX9Q on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/JbX9Q on line 4
Process exited with code 255.