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run code in 150+ php & hhvm versions
Bugs & Features
<?php class G { private $s; function ​() { if (!$this->s) { $this->s = 'g'; } if ($a = @func_get_arg(0)) { return$this->s .= $a; } $this->s .= 'o'; return $this; } } function g() { return new G(); } // This is the best that you can do in PHP // because of this: https://wiki.php.net/rfc/uniform_variable_syntax // // PHP supports unicode, unicode supports zero-width spaces echo g()->​()->​()->​()->​('al') . PHP_EOL; echo g()->​()->​('al') . PHP_EOL; echo g​('al') . PHP_EOL;
Output for 7.0.0 - 7.1.0
goooal goal Fatal error: Uncaught Error: Call to undefined function g​() in /in/Ilclb:33 Stack trace: #0 {main} thrown in /in/Ilclb on line 33
Process exited with code 255.
Output for 5.0.2 - 5.6.28
goooal goal Fatal error: Call to undefined function g​() in /in/Ilclb on line 33
Process exited with code 255.
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/Ilclb on line 31 goooalPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/Ilclb on line 32 goalPHP_EOL Fatal error: Call to undefined function g​() in /in/Ilclb on line 33
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/Ilclb on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Ilclb 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/Ilclb on line 4
Process exited with code 255.