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run code in 150+ php & hhvm versions
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<?php $len1 = mb_strlen("あああ"); $len2 = mb_strlen("ss"); echo $len1.'<br>'.$len2; ?>
Output for 5.6.7 - 7.1.0
3<br>2
Output for 4.3.0 - 5.5.35
9<br>2