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run code in 300+ PHP versions simultaneously
<?php $chars = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z"; $chars2 = "0,1,2,3,4,5,6,7,8,9"; $arrayChars = explode("," , $chars); $arrayNumbers = explode("," , $chars2); $result = array_merge(array_rand(array_flip($arrayChars) , 3) , array_rand(array_flip($arrayNumbers) , 3)); shuffle($result); var_dump($result);
Output for 7.3.1
array(6) { [0]=> int(3) [1]=> string(1) "a" [2]=> int(2) [3]=> string(1) "f" [4]=> string(1) "j" [5]=> int(0) }
Output for 7.3.0
array(6) { [0]=> string(1) "i" [1]=> int(1) [2]=> string(1) "d" [3]=> int(7) [4]=> int(8) [5]=> string(1) "o" }
Output for 7.2.13
array(6) { [0]=> string(1) "a" [1]=> int(4) [2]=> int(9) [3]=> int(8) [4]=> string(1) "p" [5]=> string(1) "x" }
Output for 7.2.12
array(6) { [0]=> int(6) [1]=> string(1) "v" [2]=> string(1) "t" [3]=> int(0) [4]=> string(1) "g" [5]=> int(5) }
Output for 7.2.11
array(6) { [0]=> int(9) [1]=> int(0) [2]=> int(5) [3]=> string(1) "u" [4]=> string(1) "x" [5]=> string(1) "w" }
Output for 7.2.10
array(6) { [0]=> int(9) [1]=> int(3) [2]=> string(1) "u" [3]=> int(2) [4]=> string(1) "q" [5]=> string(1) "f" }
Output for 7.2.9
array(6) { [0]=> int(6) [1]=> int(9) [2]=> int(5) [3]=> string(1) "u" [4]=> string(1) "i" [5]=> string(1) "a" }
Output for 7.2.8
array(6) { [0]=> string(1) "m" [1]=> string(1) "g" [2]=> int(8) [3]=> string(1) "f" [4]=> int(5) [5]=> int(4) }
Output for 7.2.7
array(6) { [0]=> string(1) "o" [1]=> string(1) "z" [2]=> int(2) [3]=> int(6) [4]=> int(4) [5]=> string(1) "h" }
Output for 7.2.6
array(6) { [0]=> string(1) "y" [1]=> int(1) [2]=> int(8) [3]=> string(1) "z" [4]=> int(7) [5]=> string(1) "d" }
Output for 7.2.5
array(6) { [0]=> string(1) "a" [1]=> string(1) "t" [2]=> int(1) [3]=> string(1) "p" [4]=> int(9) [5]=> int(7) }
Output for 7.2.4
array(6) { [0]=> int(9) [1]=> string(1) "h" [2]=> int(4) [3]=> int(7) [4]=> string(1) "a" [5]=> string(1) "q" }
Output for 7.2.3
array(6) { [0]=> int(9) [1]=> int(7) [2]=> string(1) "m" [3]=> int(8) [4]=> string(1) "f" [5]=> string(1) "q" }
Output for 7.2.2
array(6) { [0]=> string(1) "d" [1]=> int(9) [2]=> string(1) "x" [3]=> int(1) [4]=> int(7) [5]=> string(1) "t" }
Output for 7.2.1
array(6) { [0]=> int(4) [1]=> string(1) "p" [2]=> int(3) [3]=> string(1) "l" [4]=> int(5) [5]=> string(1) "f" }
Output for 7.2.0
array(6) { [0]=> string(1) "m" [1]=> int(7) [2]=> int(4) [3]=> string(1) "n" [4]=> int(5) [5]=> string(1) "u" }
Output for 7.1.25
array(6) { [0]=> string(1) "e" [1]=> string(1) "a" [2]=> int(4) [3]=> int(8) [4]=> int(6) [5]=> string(1) "m" }
Output for 7.1.7
array(6) { [0]=> int(2) [1]=> int(7) [2]=> string(1) "f" [3]=> string(1) "u" [4]=> string(1) "l" [5]=> int(6) }
Output for 7.1.6
array(6) { [0]=> int(0) [1]=> string(1) "s" [2]=> string(1) "m" [3]=> int(4) [4]=> int(6) [5]=> string(1) "c" }
Output for 7.1.5
array(6) { [0]=> int(8) [1]=> string(1) "m" [2]=> string(1) "b" [3]=> int(7) [4]=> string(1) "u" [5]=> int(1) }
Output for 7.1.3
array(6) { [0]=> string(1) "b" [1]=> int(0) [2]=> string(1) "x" [3]=> int(1) [4]=> int(2) [5]=> string(1) "w" }
Output for 7.1.2
array(6) { [0]=> string(1) "e" [1]=> int(9) [2]=> int(1) [3]=> int(3) [4]=> string(1) "a" [5]=> string(1) "x" }
Output for 7.1.1
array(6) { [0]=> int(7) [1]=> int(3) [2]=> string(1) "f" [3]=> string(1) "h" [4]=> int(1) [5]=> string(1) "x" }
Output for 7.1.0
array(6) { [0]=> string(1) "g" [1]=> int(2) [2]=> int(1) [3]=> string(1) "t" [4]=> int(6) [5]=> string(1) "v" }
Output for 7.0.20
array(6) { [0]=> int(6) [1]=> string(1) "n" [2]=> int(2) [3]=> int(0) [4]=> string(1) "o" [5]=> string(1) "w" }
Output for 7.0.17
array(6) { [0]=> int(5) [1]=> string(1) "p" [2]=> string(1) "l" [3]=> string(1) "e" [4]=> int(1) [5]=> int(8) }
Output for 7.0.16
array(6) { [0]=> int(3) [1]=> string(1) "k" [2]=> string(1) "h" [3]=> string(1) "v" [4]=> int(9) [5]=> int(8) }
Output for 7.0.15
array(6) { [0]=> string(1) "f" [1]=> int(7) [2]=> string(1) "y" [3]=> string(1) "u" [4]=> int(0) [5]=> int(4) }
Output for 7.0.14
array(6) { [0]=> string(1) "d" [1]=> string(1) "i" [2]=> string(1) "v" [3]=> int(8) [4]=> int(5) [5]=> int(7) }
Output for 7.0.13
array(6) { [0]=> int(1) [1]=> int(0) [2]=> string(1) "w" [3]=> string(1) "s" [4]=> int(4) [5]=> string(1) "r" }
Output for 7.0.12
array(6) { [0]=> int(0) [1]=> string(1) "z" [2]=> string(1) "v" [3]=> int(8) [4]=> int(6) [5]=> string(1) "a" }
Output for 7.0.11
array(6) { [0]=> string(1) "x" [1]=> int(0) [2]=> string(1) "o" [3]=> int(2) [4]=> int(7) [5]=> string(1) "i" }
Output for 7.0.10
array(6) { [0]=> int(7) [1]=> string(1) "d" [2]=> int(4) [3]=> int(3) [4]=> string(1) "c" [5]=> string(1) "z" }
Output for 7.0.9
array(6) { [0]=> int(0) [1]=> string(1) "s" [2]=> string(1) "l" [3]=> int(5) [4]=> string(1) "d" [5]=> int(8) }
Output for 7.0.8
array(6) { [0]=> string(1) "s" [1]=> string(1) "d" [2]=> int(1) [3]=> string(1) "j" [4]=> int(0) [5]=> int(8) }
Output for 7.0.7
array(6) { [0]=> string(1) "l" [1]=> int(6) [2]=> string(1) "n" [3]=> int(1) [4]=> int(7) [5]=> string(1) "d" }
Output for 7.0.6
array(6) { [0]=> string(1) "l" [1]=> string(1) "a" [2]=> int(7) [3]=> int(1) [4]=> int(5) [5]=> string(1) "o" }
Output for 7.0.5
array(6) { [0]=> int(0) [1]=> int(5) [2]=> string(1) "u" [3]=> string(1) "o" [4]=> string(1) "y" [5]=> int(3) }
Output for 7.0.4
array(6) { [0]=> int(0) [1]=> string(1) "n" [2]=> int(5) [3]=> int(2) [4]=> string(1) "p" [5]=> string(1) "o" }
Output for 7.0.3
array(6) { [0]=> string(1) "n" [1]=> int(7) [2]=> string(1) "j" [3]=> int(8) [4]=> string(1) "t" [5]=> int(3) }
Output for 7.0.2
array(6) { [0]=> int(6) [1]=> int(9) [2]=> int(0) [3]=> string(1) "t" [4]=> string(1) "g" [5]=> string(1) "j" }
Output for 7.0.1
array(6) { [0]=> string(1) "f" [1]=> string(1) "o" [2]=> string(1) "y" [3]=> int(6) [4]=> int(4) [5]=> int(2) }
Output for 7.0.0
array(6) { [0]=> int(7) [1]=> int(2) [2]=> int(0) [3]=> string(1) "x" [4]=> string(1) "w" [5]=> string(1) "b" }

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