Prova così
Codice PHP:
$pattern = "/[^A-Za-z0-9]/";
$replacement = '';
$string = preg_replace($pattern, $replacement, $string);
Prova così
Codice PHP:
$pattern = "/[^A-Za-z0-9]/";
$replacement = '';
$string = preg_replace($pattern, $replacement, $string);
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