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@ 2014-09-06T17:34:35Z

<?php
$string='maría';

$vocales = preg_match_all('/[aeiouáéíó]/i',$string, $matchesV);
echo "<br>vocales = $vocales";

if ((in_array('á',$matchesV))||(in_array('é',$matchesV)) || (in_array('í',$matchesV)) || (in_array('ó',$matchesV))){
    $v = $vocales - 1;
    echo "<br>v $v";
    echo '<br>1'; }

Output
Performance
VLD
References
Branches

preg_match_all: documentation ( source)
in_array: documentation ( source)

preferences:dark modelive preview

32.64 ms | 402 KiB | 5 Q