3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (defined('HHVM_VERSION')) { exit('*HHVM skipped*'); } function myErrorHandler($errno, $errstr, $errfile, $errline) { if ($errno == E_NOTICE && in_array($errstr, array( 'Undefined variable: undefined', 'Undefined variable: undefined', ), true)) { echo "\n"; echo "Caught a Notice: Undefined variable: undefined in $errfile on line $errline\n"; return true; } if ($errno == E_WARNING && in_array($errstr, array( 'key() expects parameter 1 to be array, null given', 'key(): Passed variable is not an array or object', 'key() [http://www.php.net/function.key]: Passed variable is not an array or object', ), true)) { echo "\n"; echo "(caught the warning about null not being an array in $errfile on line $errline)\n"; return true; } return false; } set_error_handler('myErrorHandler'); // The following line will emit a notice if key() takes its parameter by value key($undefined);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $undefined in /in/Eb8bc on line 34 Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, null given in /in/Eb8bc:34 Stack trace: #0 /in/Eb8bc(34): key(NULL) #1 {main} thrown in /in/Eb8bc on line 34
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined variable $undefined in /in/Eb8bc on line 34 Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, null given in /in/Eb8bc:34 Stack trace: #0 /in/Eb8bc(34): key(NULL) #1 {main} thrown in /in/Eb8bc on line 34
Process exited with code 255.
Output for 4.4.1, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Caught a Notice: Undefined variable: undefined in /in/Eb8bc on line 34 (caught the warning about null not being an array in /in/Eb8bc on line 34)
Output for 4.3.0 - 4.3.11, 4.4.0, 4.4.2 - 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 - 5.5.38, 5.6.0 - 5.6.30
(caught the warning about null not being an array in /in/Eb8bc on line 34)
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