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run code in 300+ PHP versions simultaneously
<?php function allowedArgs($input, $allowed) { return array_filter( $input, function ($key) use ($allowed) { return in_array($key, $allowed); }, ARRAY_FILTER_USE_KEY ); } function example($args) { extract(allowedArgs($args, ['foo', 'bar'])); var_dump($foo, $bar, $baz); } example(['bar' => 2, 'foo' => 1, 'baz'=> 3]);
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 $baz in /in/odZr7 on line 15 int(1) int(2) NULL
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 $baz in /in/odZr7 on line 15 int(1) int(2) NULL
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: baz in /in/odZr7 on line 15 int(1) int(2) NULL
Output for 7.3.32 - 7.3.33
int(1) int(2) NULL
preferences:
152.6 ms | 401 KiB | 198 Q