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@ 2014-05-13T13:02:50Z

<?php
$string = "Gironde numérique";
$string = strtoupper($string);
$string = preg_replace("/[^A-Za-z0-9 ]/", '', $string);
$string = preg_replace('/\s+/_', '', $string);
echo "gn_" . $string;

Output
Performance
VLD
References
Branches

strtoupper: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

47.62 ms | 402 KiB | 5 Q