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run code in 300+ PHP versions simultaneously
<?php $x = [1 => 2, 2 => 3]; for ($i = 0; $i < 5; $i++) echo array_rand($x);
Output for 7.0.7, 7.0.16, 7.2.6
12121
Output for 7.1.3, 7.2.0
21211
Output for 7.1.10
22211
Output for 7.0.0, 7.1.7
21112
Output for 7.0.5, 7.0.12, 7.1.6
11121
Output for 7.0.14, 7.1.0, 7.1.5
12122
Output for 7.0.18, 7.1.4
11111
Output for 7.1.2
11221
Output for 7.1.1
11122
Output for 7.0.9, 7.0.20
12212
Output for 7.0.19
11112
Output for 7.0.17
21221
Output for 7.0.10, 7.0.15
22122
Output for 7.0.6, 7.0.13
22212
Output for 7.0.11
22221
Output for 7.0.8
11211
Output for 7.0.4
12221
Output for 7.0.3
21121
Output for 7.0.2
22112
Output for 7.0.1
12211
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63.79 ms | 401 KiB | 37 Q