Online PHP editor | output for H2tek

<?php $str = 'Lorem ipsum dolor sit amet, adipisicing <img src="http://example.com/img.jpg" />consequat.'; var_export( preg_filter('/.*?<img(?= ).*? src=([\'"])((?:(?!\1).)*)\1.*/ius', '$2', $str) ); echo "\n---\n"; $str = 'Lorem ipsum dolor sit amet, adipisicing <img src="" />consequat.'; var_export( preg_filter('/.*?<img(?= ).*? src=([\'"])((?:(?!\1).)*)\1.*/ius', '$2', $str) ); echo "\n---\n"; $str = 'omg no img tag!'; var_export( preg_filter('/.*?<img(?= ).*? src=([\'"])((?:(?!\1).)*)\1.*/ius', '$2', 'omg no img!') );