3v4l.org

run code in 300+ PHP versions simultaneously
<?php function vowelRatio($str) { for($i = 0, $c = 0; $i < strlen($str); $i++) { if(in_array(substr($str,$i,1),array("a","e","i","o","u"))) $c++; } return "Vowel ratio for string \"{$str}\": ".strlen($str) / $c."\n"; } echo vowelRatio("The quick brown fox jumps over the lazy dog."); echo vowelRatio("The SSL certificate has been updated");
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 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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
Vowel ratio for string "The quick brown fox jumps over the lazy dog.": 4 Vowel ratio for string "The SSL certificate has been updated": 3

preferences:
255.29 ms | 406 KiB | 370 Q