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@ 2019-04-02T10:36:11Z

<?php

$text = " &nbsp; &nbsp; <p>Hello World!&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Javascript development&nbsp;PHP Developer&nbsp;</p> &nbsp; &nbsp; ";

$result = preg_replace(['/^((?:&nbsp;|\s)+)|(?1)$/', '/\s*&nbsp;(?:\s*&nbsp;)*\s*/', '/\s+/'], ['', '&nbsp;',' '], trim($text));

echo $result;

Output
Performance
VLD
References
Branches

trim: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

42.57 ms | 406 KiB | 5 Q