3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php // remove duplicated spaces into single spaces but persist special spaces like the non-breaking-space $normalized = "\xC2\xA1\xC2\xA0 "; $normalized = preg_replace("/([ \xC2\xA0])?\\s+/u", '$1 ', $normalized); $normalized = preg_replace('/([ \xC2\xA0]) /u', '$1', $normalized); var_dump($normalized, bin2hex($normalized));
based on 4lo8n
Output for 4.3.0 - 7.2.0
string(4) "¡ " string(8) "c2a1c2a0"