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@ 2018-10-22T12:54:45Z

<?php
$a = array("nl", "net", "com");
$domain = explode(".", '.ne');
foreach($a as $c) {
    echo (strlen($domain[1]) - 1);
    if($c[(strlen($domain[1]) - 1)] == $domain[1]) {
        $matches[]= $c;
    }
}
if(!empty($matches)) {
    echo implode(',', $matches);
} else {
    echo 'no matches';
}

Output
Performance
VLD
References
Branches

implode: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

52.05 ms | 402 KiB | 5 Q