3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = 'pippo ASC, `table`.`pippo` DESC, campo.discendente DESC, `tabella`.`asc` ASC'; $string = preg_replace_callback('#(![\`]+)\b(ASC|DESC)\b#i', function($match) { switch(strtoupper($match[1])) { case 'ASC': return 'DESC'; case 'DESC': return 'ASC'; } }, $string); echo $string;
Output for 5.3.0 - 7.1.0
pippo ASC, `table`.`pippo` DESC, campo.discendente DESC, `tabella`.`asc` ASC
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/5j09J 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/5j09J on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5j09J on line 4
Process exited with code 255.