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@ 2024-06-11T23:12:37Z

<?php

if (preg_match("[a-zA-Z0-9]", 'a-zA-Z0-9')) {
 echo 'First Returned valid.';
}
echo "\n";
if (preg_match("[a-zA-Z0-9.-]", 'a-zA-Z0-9#-')){
 echo 'Middle Returned valid.';
}

Output
Performance
VLD
References
Branches

preg_match: documentation ( source)

preferences:dark modelive previewkey bindings

31.46 ms | 404 KiB | 5 Q