{"id":11011,"date":"2022-09-25T19:53:04","date_gmt":"2022-09-25T14:23:04","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-add-array-values-at-the-start-of-each-subarray-from-other-array\/"},"modified":"2022-09-25T19:53:04","modified_gmt":"2022-09-25T14:23:04","slug":"solved-add-array-values-at-the-start-of-each-subarray-from-other-array","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-add-array-values-at-the-start-of-each-subarray-from-other-array\/","title":{"rendered":"[Solved] Add array values at the start of each subArray from other array"},"content":{"rendered":"

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You can use array_walk()<\/code><\/a> with anonymous function<\/a> and array_unshift()<\/code><\/a>:<\/p>\n

array_walk\n(\n    $array1,\n    function( &$row, $key, $kind )\n    {\n        array_unshift( $row, $kind[$key] );\n    },\n    $array2 \n);\n<\/code><\/pre>\n
eval.in demo<\/a><\/strong><\/kbd><\/p>\n
array_walk()<\/code><\/a> modify an array using a custom function. The callable function arguments are the array item (note that we have to set it by reference<\/a> using &<\/code>), the array key (optional) and an optional custom parameter (in our case, $array2<\/code>). Inside the function, with array_unshift()<\/code><\/a>) we can prepend to each item the relative $array2<\/code> item, selecting it by key $key<\/code>.<\/p>\n
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