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@ 2022-03-01T17:52:10Z

<?php

var_dump(strtoupper(1));
var_dump(strtoupper(1.2));
var_dump(strtoupper(false));
var_dump(strtoupper('a'));
var_dump(strtoupper(NULL));

var_dump(strtoupper(''   == ''));
var_dump(strtoupper(NULL == ''));

?>

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
strtoupper: documentation ( source)

preferences:dark modelive previewkey bindings

27.34 ms | 405 KiB | 5 Q