3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーティーエッフ8hello123等々'; $var = 'ィーエ'; $pos = strpos($utf8string, $var); if ($pos!==false) { echo substr($utf8string, 0, $pos); }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.32, 7.1.0 - 7.1.24, 7.2.0 - 7.2.33, 7.3.12 - 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
ASCIIユーテ

preferences:
211.53 ms | 404 KiB | 367 Q