3v4l.org

run code in 300+ PHP versions simultaneously
<?php // expecting 'bcde' to be replaced first echo strtr('abcdef', ['abc'=> '1', 'bcde'=> '2']) . "\n"; // the following two are replaced as expected, just to give more info echo strtr('abcdef', ['a'=> '2', 'abc'=> '1']) . "\n"; echo strtr('abcdef', ['abcd'=> '2', 'abc'=> '1']) . "\n";
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.7
1def 1def 2ef
preferences:
257.06 ms | 404 KiB | 340 Q