3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'A B C ()'; $str = preg_replace(\ \(\)\&\i, '_', $str);
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected '\' (T_NS_SEPARATOR), expecting identifier (T_STRING) in /in/VVWsO on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_NS_SEPARATOR, expecting T_STRING in /in/VVWsO on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Parse error: syntax error, unexpected ')' in /in/VVWsO on line 3
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Parse error: parse error, unexpected ')' in /in/VVWsO on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/VVWsO on line 3 Parse error: parse error in /in/VVWsO on line 3
Process exited with code 255.