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run code in 150+ php & hhvm versions
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<?php $custom_fields = [ 'foo' => '17', ]; $time_intervals = ['day', 'month', 'year', 'hour', 'minute', 'period']; $data = [ 'fooday' => '17', 'foomonth' => 'March', 'name' => 'Chris' ]; function array_string_multiply($array1, $array2) { foreach ($array1 as $field) { yield array_map(function ($interval) use ($field) { return $field . $interval; }, $array2); } } var_dump(array_string_multiply(array_keys($array1), $array2)); foreach (array_keys($custom_fields) as $name) { foreach ($time_intervals as $interval_name) { // ; } } var_dump($data); // Result should be array that only contains $data['name'] = 'Chris'
based on 4K8NV
Output for 5.5.0 - 7.1.0
Notice: Undefined variable: array1 in /in/oNJmo on line 23 Warning: array_keys() expects parameter 1 to be array, null given in /in/oNJmo on line 23 Notice: Undefined variable: array2 in /in/oNJmo on line 23 object(Generator)#1 (0) { } array(3) { ["fooday"]=> string(2) "17" ["foomonth"]=> string(5) "March" ["name"]=> string(5) "Chris" }
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'array_map' (T_STRING) in /in/oNJmo on line 17
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/oNJmo on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/oNJmo on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/oNJmo on line 2
Process exited with code 255.