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@ 2019-04-02T10:30:09Z

<?php

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

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

echo $result;

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

147.88 ms | 404 KiB | 5 Q