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@ 2022-05-29T23:47:43Z

<?php

$keywords = [['keyword'=>'designing'],['keyword'=>'logo designing']];
$user_id = 5;

var_export(
    array_map(
        fn($v) => ['user_id' => $user_id] + $v,
        $keywords
    )
);

Output
Performance
VLD
References
Branches

array_map: documentation ( source)
var_export: documentation ( source)

preferences:dark modelive previewkey bindings

36.32 ms | 405 KiB | 5 Q