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@ 2014-05-13T13:07:33Z

<?php
$string = "Gironde numérique";
$string = strtolower($string);
$string = preg_replace('~\p{Mn}~u', '', $string);
$string = preg_replace("/[^A-Za-z0-9]/", '', $string);
$string = preg_replace('/\s+/', '_', $string);
echo "gn_" . $string;

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)
strtolower: documentation ( source)

preferences:dark modelive preview

37.08 ms | 402 KiB | 5 Q