3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $user_data = [ 'one' => 'one value', 'two' => 'another value', 'three' => 'last value' ]; $fields = [ 'field1' => 'Name', 'field2' => 'Street' ]; $fields_position = [0, 3]; $values = [ 'John', 'Doe', '555 23 58 45', 'Evergreen Terrace' ]; foreach($fields_position as $idx) { $field_name = $fields[$idx]; $user_data[$idx] = $values[$idx]; } /* The result of $user_data must be [ 'one' => 'one value', 'two' => 'another value' 'three' => 'last value' 'field1' => 'John', 'field2' => 'Evergreen Terrace' ]. Because in 0 position of $values is John and in 3 position is 'Evergreen Terrace' */ var_dump($user_data);
based on 5Ak2L
Output for 5.6.0 - 5.6.30, 7.1.0 - 7.3.0beta1
Notice: Undefined offset: 0 in /in/gdVG7 on line 23 Notice: Undefined offset: 3 in /in/gdVG7 on line 23 array(5) { ["one"]=> string(9) "one value" ["two"]=> string(13) "another value" ["three"]=> string(10) "last value" [0]=> string(4) "John" [3]=> string(17) "Evergreen Terrace" }
Output for hhvm-3.22.0
Notice: Undefined index: 0 in /in/gdVG7 on line -1 Notice: Undefined index: 3 in /in/gdVG7 on line -1 array(5) { ["one"]=> string(9) "one value" ["two"]=> string(13) "another value" ["three"]=> string(10) "last value" [0]=> string(4) "John" [3]=> string(17) "Evergreen Terrace" }
Output for hhvm-3.18.5 - 3.21.3
Notice: Undefined index: 0 in /in/gdVG7 on line 23 Notice: Undefined index: 3 in /in/gdVG7 on line 23 array(5) { ["one"]=> string(9) "one value" ["two"]=> string(13) "another value" ["three"]=> string(10) "last value" [0]=> string(4) "John" [3]=> string(17) "Evergreen Terrace" }