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<?php function timesTwo($num, $callback) { $num = $num*2; echo "num from timesTwo: ".$num.PHP_EOL; return call_user_func($callback, $num); } function addOne($num) { echo 'Num from add 1: '.$num.PHP_EOL; return $num + 1; } echo timesTwo(5, 'addOne'); ?>
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 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
num from timesTwo: 10 Num from add 1: 10 11
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 num from timesTwo: 10 Num from add 1: 10 11
preferences:
157.07 ms | 402 KiB | 172 Q