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<?php $input = '((\'rats\' + \'stoats\') - 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; print "\n symbol: " . $expr; } continue; } list($id, $text) = $token; if(in_array($id, array(T_DNUMBER, T_LNUMBER,T_CONSTANT_ENCAPSED_STRING))){ $expr .= $text; print "\n number: " . $expr; } } eval("\$result = {$expr};"); print "\nexpr = " . $expr; print "\nres = " . $result;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
symbol: ( symbol: (( number: (('rats' symbol: (('rats'+ number: (('rats'+'stoats' symbol: (('rats'+'stoats') symbol: (('rats'+'stoats')- number: (('rats'+'stoats')-800 symbol: (('rats'+'stoats')-800/ number: (('rats'+'stoats')-800/2 symbol: (('rats'+'stoats')-800/2) Fatal error: Uncaught TypeError: Unsupported operand types: string + string in /in/ohVeJ(28) : eval()'d code:1 Stack trace: #0 /in/ohVeJ(28): eval() #1 {main} thrown in /in/ohVeJ(28) : eval()'d code on line 1
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
symbol: ( symbol: (( number: (('rats' symbol: (('rats'+ number: (('rats'+'stoats' symbol: (('rats'+'stoats') symbol: (('rats'+'stoats')- number: (('rats'+'stoats')-800 symbol: (('rats'+'stoats')-800/ number: (('rats'+'stoats')-800/2 symbol: (('rats'+'stoats')-800/2) Warning: A non-numeric value encountered in /in/ohVeJ(28) : eval()'d code on line 1 Warning: A non-numeric value encountered in /in/ohVeJ(28) : eval()'d code on line 1 expr = (('rats'+'stoats')-800/2) res = -400
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20
symbol: ( symbol: (( number: (('rats' symbol: (('rats'+ number: (('rats'+'stoats' symbol: (('rats'+'stoats') symbol: (('rats'+'stoats')- number: (('rats'+'stoats')-800 symbol: (('rats'+'stoats')-800/ number: (('rats'+'stoats')-800/2 symbol: (('rats'+'stoats')-800/2) expr = (('rats'+'stoats')-800/2) res = -400
preferences:
277.67 ms | 404 KiB | 392 Q