3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(range('A', 'z'));
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
Array ( [0] => A [1] => B [2] => C [3] => D [4] => E [5] => F [6] => G [7] => H [8] => I [9] => J [10] => K [11] => L [12] => M [13] => N [14] => O [15] => P [16] => Q [17] => R [18] => S [19] => T [20] => U [21] => V [22] => W [23] => X [24] => Y [25] => Z [26] => [ [27] => \ [28] => ] [29] => ^ [30] => _ [31] => ` [32] => a [33] => b [34] => c [35] => d [36] => e [37] => f [38] => g [39] => h [40] => i [41] => j [42] => k [43] => l [44] => m [45] => n [46] => o [47] => p [48] => q [49] => r [50] => s [51] => t [52] => u [53] => v [54] => w [55] => x [56] => y [57] => z )

preferences:
222.57 ms | 407 KiB | 314 Q