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run code in 300+ PHP versions simultaneously
<?php class Foo { private $mVars; public function generateVars() { $this->mVars = [ 'x', 'y', 'z' ]; } public function dumpVars() { var_dump( $this->mVars ); } } // 1. Make mVars public, uncomment line 16, then eval. $before = new Foo(); $before->generateVars(); // echo serialize($before) . "\n"; define('BEFORE', 1); // 2. Insert the serialised text from first eval $serialised = 'O:3:"Foo":1:{s:5:"mVars";a:3:{i:0;s:1:"x";i:1;s:1:"y";i:2;s:1:"z";}}'; // 3. Make mVars private, comment out line 16, then eval $after = unserialize($serialised); $after->dumpVars();
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.24, 7.4.0 - 7.4.13, 8.0.0
array(3) { [0]=> string(1) "x" [1]=> string(1) "y" [2]=> string(1) "z" }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
NULL
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/7XTJj on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/7XTJj on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7XTJj on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7XTJj on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/7XTJj on line 4
Process exited with code 255.