3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "hello ๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘งโ€๐Ÿ‘ฆ"; echo strlen($str) . "\n"; echo mb_strlen($str) . "\n"; echo iconv_strlen($str) . "\n"; echo grapheme_strlen($str) . "\n";
Output for 5.6.0 - 5.6.40, 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 - 7.4.32, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
31 13 13 7
Output for 7.4.33
31 13 Fatal error: Uncaught Error: Call to undefined function iconv_strlen() in /in/GEMuI:8 Stack trace: #0 {main} thrown in /in/GEMuI on line 8
Process exited with code 255.
preferences:
129.74 ms | 407 KiB | 5 Q