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<?php $array = array('foo' => 'a', 'bar' => 'b', 'baz' => 'c'); $insert_array = array('one' => 'two'); $pos = array_search($key, array_keys($array)) ?: 0; $array = array_slice($array, 0, $pos) + $insert_array + array_slice($array, $pos); var_dump($array);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $key in /in/LkKXn on line 6 array(4) { ["one"]=> string(3) "two" ["foo"]=> string(1) "a" ["bar"]=> string(1) "b" ["baz"]=> string(1) "c" }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: key in /in/LkKXn on line 6 array(4) { ["one"]=> string(3) "two" ["foo"]=> string(1) "a" ["bar"]=> string(1) "b" ["baz"]=> string(1) "c" }
Output for 7.3.32 - 7.3.33, 7.4.26
array(4) { ["one"]=> string(3) "two" ["foo"]=> string(1) "a" ["bar"]=> string(1) "b" ["baz"]=> string(1) "c" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected ':' in /in/LkKXn on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':' in /in/LkKXn on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/LkKXn on line 6
Process exited with code 255.

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