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@ 2019-04-02T09:44:10Z

<?php

$string = "Welcome to Lorien.";
$search = "welcome";

$result = preg_replace("/{$search}/i", '<b>$0</b>', $string);

print_r($result);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

32.75 ms | 405 KiB | 5 Q