<?php
// remove duplicated spaces into single spaces but persist special spaces like the non-breaking-space
$normalized = "\xE2\x80\x80\xC2\xA0 ";
$normalized = preg_replace("/([ \xC2\xA0])?\\s+/u", '$1 ', $normalized);
$normalized = preg_replace('/([ \xC2\xA0]) /u', '$1', $normalized);
var_dump($normalized, bin2hex($normalized));
- Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- string(1) " "
string(2) "20"
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.3
- string(5) " "
string(10) "e28080c2a0"
preferences:
230.02 ms | 403 KiB | 311 Q