- strip_tags: documentation ( source)
<?php
$a = [
'<a href="www.onte.pl">Test</a>',
'<a href="http://www.onet.pl">Test</a>',
'<a href="
http://wp.pl">T</a>',
'<a href="onet.pl" title="qweqweqe">qweqwe</a>',
];
foreach ($a as $k) {
echo strip_tags($k) , PHP_EOL;
}