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<?php function thing(array $needle, $haystack) { $result = array($haystack); foreach ($needle as $a) { $target = []; foreach ($result as $r) { $target = array_merge($target, explode($a, $r)); } $result = $target; } $result = array_filter($result); // Put the elements in needle back into the result $result = array_merge($needle, $result); return array_values($result); } var_dump(thing(array('THIS', 'test', 'hello', 'A', 'is'), 'helloTHISisAblindtest'));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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(6) { [0]=> string(4) "THIS" [1]=> string(4) "test" [2]=> string(5) "hello" [3]=> string(1) "A" [4]=> string(2) "is" [5]=> string(5) "blind" }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/7UnM4 on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/7UnM4 on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/7UnM4 on line 4
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
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/7UnM4 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/7UnM4 on line 4
Process exited with code 255.

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