3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = '((800 + 20) - 800 / 2)'; $tokens = token_get_all("<?php {$input}"); $expr = ''; foreach($tokens as $token){ if(is_string($token)){ if(in_array($token, array('(', ')', '+', '-', '/', '*'), true)) $expr .= $token; continue; } list($id, $text) = $token; if(in_array($id, array(T_DNUMBER, T_LNUMBER))) $expr .= $text; } eval("\$result = {$expr};") print "\nexpr = " . $expr; print "\nres = " . $result;
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected 'print' (T_PRINT) in /in/CktQM on line 26
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_PRINT in /in/CktQM on line 26
Process exited with code 255.