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run code in 300+ PHP versions simultaneously
<?php $chars = array("a", "b", "c", "d", "e", "f", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"); $rand = array_rand($chars, 5); $key = implode("", $rand); var_dump($rand); var_dump($key);
Output for 7.2.3
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(7) [4]=> int(9) } string(5) "12379"
Output for 7.2.2
array(5) { [0]=> int(0) [1]=> int(1) [2]=> int(2) [3]=> int(4) [4]=> int(5) } string(5) "01245"
Output for 7.2.1
array(5) { [0]=> int(0) [1]=> int(2) [2]=> int(3) [3]=> int(6) [4]=> int(12) } string(6) "023612"
Output for 7.2.0
array(5) { [0]=> int(0) [1]=> int(1) [2]=> int(4) [3]=> int(5) [4]=> int(15) } string(6) "014515"
Output for 7.1.15
array(5) { [0]=> int(6) [1]=> int(10) [2]=> int(12) [3]=> int(13) [4]=> int(14) } string(9) "610121314"
Output for 7.1.14
array(5) { [0]=> int(3) [1]=> int(7) [2]=> int(13) [3]=> int(14) [4]=> int(15) } string(8) "37131415"
Output for 7.1.13
array(5) { [0]=> int(1) [1]=> int(6) [2]=> int(8) [3]=> int(9) [4]=> int(14) } string(6) "168914"
Output for 7.1.12
array(5) { [0]=> int(0) [1]=> int(2) [2]=> int(8) [3]=> int(9) [4]=> int(13) } string(6) "028913"
Output for 7.1.11
array(5) { [0]=> int(2) [1]=> int(6) [2]=> int(7) [3]=> int(10) [4]=> int(14) } string(7) "2671014"
Output for 7.1.10
array(5) { [0]=> int(8) [1]=> int(10) [2]=> int(12) [3]=> int(14) [4]=> int(15) } string(9) "810121415"
Output for 7.1.9
array(5) { [0]=> int(2) [1]=> int(8) [2]=> int(10) [3]=> int(12) [4]=> int(14) } string(8) "28101214"
Output for 7.1.8
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(4) [3]=> int(9) [4]=> int(15) } string(6) "124915"
Output for 7.1.7
array(5) { [0]=> int(1) [1]=> int(6) [2]=> int(8) [3]=> int(9) [4]=> int(13) } string(6) "168913"
Output for 7.1.6
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(9) } string(5) "12349"
Output for 7.1.5
array(5) { [0]=> int(0) [1]=> int(6) [2]=> int(7) [3]=> int(13) [4]=> int(15) } string(7) "0671315"
Output for 7.1.4
array(5) { [0]=> int(2) [1]=> int(3) [2]=> int(6) [3]=> int(8) [4]=> int(12) } string(6) "236812"
Output for 7.1.3
array(5) { [0]=> int(0) [1]=> int(4) [2]=> int(5) [3]=> int(10) [4]=> int(15) } string(7) "0451015"
Output for 7.1.2
array(5) { [0]=> int(3) [1]=> int(5) [2]=> int(9) [3]=> int(10) [4]=> int(11) } string(7) "3591011"
Output for 7.1.1
array(5) { [0]=> int(1) [1]=> int(6) [2]=> int(11) [3]=> int(12) [4]=> int(14) } string(8) "16111214"
Output for 7.1.0
array(5) { [0]=> int(1) [1]=> int(6) [2]=> int(8) [3]=> int(10) [4]=> int(13) } string(7) "1681013"

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