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run code in 300+ PHP versions simultaneously
<?php $a = array("a" => "AA", "b" => "BB", "c" => "CC"); $a2 = $a; $z = array("z" => array("z1"=>"ZZ1","z2"=>"ZZ2"), "x" =>"XX"); // 1 try to replace "b"=>"BB" by contents of $z array_splice($a, 1, 1, $z); print_r($a); // produces : Array ( [a] => AA [0] => Array ( [z1] => ZZ1 [z2] => ZZ2 ) [1] => XX [c] => CC ) echo "<hr>"; // 2 try to replace "b"=>"BB" by contents of $z as in manual array_splice($a, 1, 1, array($z)); print_r($a);
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, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 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 ( [a] => AA [0] => Array ( [z1] => ZZ1 [z2] => ZZ2 ) [1] => XX [c] => CC ) <hr>Array ( [a] => AA [0] => Array ( [z] => Array ( [z1] => ZZ1 [z2] => ZZ2 ) [x] => XX ) [1] => XX [c] => CC )

preferences:
256.87 ms | 406 KiB | 349 Q