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<?php $string="[2422996,2422996,2422996,2422996]"; $jsobj=json_decode($string); if(array_search(2422996,$jsobj,true)===false){ array_push($jsobj,2422996); $jsobj=json_encode($jsobj); print_r($jsobj); print('Complimenti, sei iscritto alle news, ti manderemo tutte le novità'); }else{ print('Sei già iscritto alle News'); } ?>
Output for git.master, git.master_jit, rfc.property-hooks
Sei già iscritto alle News

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