3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'a' => 3, 'b' => 4, 'c' => 5 ); $r = array_rand($a); var_dump($r);
Output for 4.3.0 - 4.3.2, 4.3.5 - 4.3.6, 4.3.11, 4.4.0 - 4.4.1, 4.4.4 - 4.4.6, 5.0.0, 5.0.4 - 5.0.5, 5.1.0 - 5.1.2, 5.1.6, 5.2.2, 5.2.4, 5.2.6, 5.2.8, 5.2.10 - 5.2.11, 5.2.13 - 5.2.17, 5.3.0, 5.3.2, 5.3.11 - 5.3.14, 5.3.24, 5.4.2, 5.4.7, 5.4.15 - 5.4.16, 5.4.18, 5.4.24, 5.4.28 - 5.4.29, 5.4.32, 5.4.38, 5.4.40 - 5.4.42, 5.5.7, 5.5.9, 5.5.13 - 5.5.14, 5.5.20, 5.5.22 - 5.5.23, 5.5.26, 5.5.28, 5.5.33 - 5.5.35, 5.5.37 - 5.5.38, 5.6.1 - 5.6.2, 5.6.4 - 5.6.6, 5.6.10 - 5.6.12, 5.6.17, 5.6.19, 5.6.22, 5.6.25, 5.6.31 - 5.6.32, 5.6.37, 7.0.5, 7.0.7 - 7.0.8, 7.0.15 - 7.0.16, 7.0.22, 7.0.27, 7.0.33, 7.1.1 - 7.1.2, 7.1.7 - 7.1.8, 7.1.16, 7.1.21, 7.1.23, 7.2.1 - 7.2.3, 7.2.11 - 7.2.12, 7.3.0
string(1) "a"
Output for 4.3.8, 4.3.10, 4.4.8, 5.0.2, 5.2.0, 5.2.9, 5.3.1, 5.3.3 - 5.3.5, 5.3.7, 5.3.15, 5.3.17, 5.3.19 - 5.3.20, 5.3.23, 5.4.0, 5.4.4, 5.4.6, 5.4.9 - 5.4.11, 5.4.13, 5.4.19, 5.4.22, 5.4.25, 5.4.35, 5.4.39, 5.4.43, 5.4.45, 5.5.1 - 5.5.2, 5.5.5 - 5.5.6, 5.5.8, 5.5.15, 5.5.25, 5.5.32, 5.5.36, 5.6.0, 5.6.7, 5.6.9, 5.6.16, 5.6.18, 5.6.20, 5.6.23, 5.6.26 - 5.6.27, 5.6.29 - 5.6.30, 5.6.33 - 5.6.34, 5.6.36, 7.0.1 - 7.0.3, 7.0.6, 7.0.10 - 7.0.11, 7.0.13, 7.0.17 - 7.0.18, 7.0.23 - 7.0.26, 7.0.32, 7.1.0, 7.1.4 - 7.1.5, 7.1.9 - 7.1.13, 7.1.18, 7.1.20, 7.1.22, 7.1.24, 7.2.0, 7.2.6, 7.2.8, 7.2.13
string(1) "c"
Output for 4.3.3 - 4.3.4, 4.3.7, 4.3.9, 4.4.2 - 4.4.3, 4.4.7, 4.4.9, 5.0.1, 5.0.3, 5.1.3 - 5.1.5, 5.2.1, 5.2.3, 5.2.5, 5.2.7, 5.2.12, 5.3.6, 5.3.8 - 5.3.10, 5.3.16, 5.3.18, 5.3.21 - 5.3.22, 5.3.25 - 5.3.29, 5.4.1, 5.4.3, 5.4.5, 5.4.8, 5.4.12, 5.4.14, 5.4.17, 5.4.20 - 5.4.21, 5.4.23, 5.4.26 - 5.4.27, 5.4.30 - 5.4.31, 5.4.33 - 5.4.34, 5.4.36 - 5.4.37, 5.4.44, 5.5.0, 5.5.3 - 5.5.4, 5.5.10 - 5.5.12, 5.5.16 - 5.5.19, 5.5.21, 5.5.24, 5.5.27, 5.5.29 - 5.5.31, 5.6.3, 5.6.8, 5.6.13 - 5.6.15, 5.6.21, 5.6.24, 5.6.28, 5.6.35, 5.6.38, 7.0.0, 7.0.4, 7.0.9, 7.0.12, 7.0.14, 7.0.19 - 7.0.21, 7.0.28 - 7.0.31, 7.1.3, 7.1.6, 7.1.14 - 7.1.15, 7.1.17, 7.1.19, 7.1.25, 7.2.4 - 7.2.5, 7.2.7, 7.2.9 - 7.2.10
string(1) "b"

preferences:
187.45 ms | 418 KiB | 287 Q