3v4l.org

run code in 300+ PHP versions simultaneously
<?php $emoji = "\u{1F469}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{1F48B}\u{200D}\u{1F469}"; echo $emoji , " : " , strlen($emoji) , "\n"; // 27, count byte echo $emoji , " : " , mb_strlen($emoji) , "\n"; // 8, count characters echo $emoji , " : " , grapheme_strlen($emoji) , "\n"; // 1, count grapheme units
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
👩‍❤️‍💋‍👩 : 27 👩‍❤️‍💋‍👩 : 8 👩‍❤️‍💋‍👩 : 1
Output for 5.6.0 - 5.6.40
\u{1F469}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{1F48B}\u{200D}\u{1F469} : 67 \u{1F469}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{1F48B}\u{200D}\u{1F469} : 67 \u{1F469}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{1F48B}\u{200D}\u{1F469} : 67
preferences:
128.57 ms | 407 KiB | 5 Q