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run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo(){ // sys_get_temp_dir is only available since PHP 5.2.1 // http://php.net/manual/en/function.sys-get-temp-dir.php#94119 if ( !function_exists('sys_get_temp_dir')) { if ($temp = getenv('TMP') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TEMP') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TMPDIR') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } // trick for creating a file in system's temporary dir // without knowing the path of the system's temporary dir $temp = tempnam(__FILE__, ''); if (file_exists($temp)) { unlink($temp); return realpath(dirname($temp)); } return null; } // use ordinary built-in PHP function // There should be no problem with the 5.2.4 Suhosin realpath() bug, because this line should only // be called if we're running 5.2.1 or earlier return realpath(sys_get_temp_dir()); } echo $foo();
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Uncaught Error: Function name must be a string in /in/pFYfM:32 Stack trace: #0 {main} thrown in /in/pFYfM on line 32
Process exited with code 255.
Output for 5.0.4 - 5.6.28
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Function name must be a string in /in/pFYfM on line 32
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Function name must be a string in /in/pFYfM on line 32
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Call to undefined function: () in /in/pFYfM on line 32
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Call to undefined function: () in /in/pFYfM on line 32
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Undefined variable: foo in /in/pFYfM on line 32 Fatal error: Call to undefined function: () in /in/pFYfM on line 32