- error_reporting: documentation ( source)
<?php
error_reporting(~0);
$string = '<span/>';
$dom = new DOMDocument();
$dom->loadHTML($string);
$dom->preserveWhiteSpace = false;
$elements = $dom->getElementsByTagName('span');
while($span = $elements->item(0)) {
$span->parentNode->removeChild($span);
}
echo $dom->saveHTML();