- array_map: documentation ( source)
- var_dump: documentation ( source)
- sprintf: documentation ( source)
<?php
$stringarr = ['<vhost>%s<vhost>', '<vhost2>%s</vhost2>'];
array_map(function (&$string) {
echo $string;
sprintf($string, 'test');
return sprintf($string, 'test');
}, $stringarr);
var_dump($stringarr);