Ragazzi ho provato cosi
codice:
<?php
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[] = (string)"0E4635";
$arr[]= (string)"0E6489";
$arr[]= (string)"0E6489";
$arr[]= (string)"0E6489";
$arr[]= (string)"0E6489";
$search = "0E6489";
$chiavi = array_keys($arr,$search);
print_r($chiavi);
?>
Ma non camnia nulla!!!