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@ 2014-01-13T13:08:23Z

<?php

$content_no_tags = "   \n\r&nbsp;foo   \n\r&nbsp;";

var_dump(preg_replace( '/(\s|&nbsp;)+/S',' ', $content_no_tags ));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

38.88 ms | 402 KiB | 5 Q