Online PHP editor | output for bdgPl

@ 2020-06-10T10:57:43Z

<?php

$rows = [
    100 => [
        ['product_id' => 101, 'name' => ''],
        ['product_id' => 102, 'name' => ''],
        ['product_id' => 103, 'name' => ''],
    ],
    200 => [
        ['product_id' => 201, 'name' => ''],
        ['product_id' => 202, 'name' => ''],
    ],
    300 => [
        ['product_id' => 301, 'name' => ''],
        ['product_id' => 302, 'name' => ''],
        ['product_id' => 303, 'name' => ''],
        ['product_id' => 304, 'name' => ''],
    ]
];

var_export(
    array_merge(
        ...array_map(
            function() {
                return array_filter(
                    func_get_args()
                );
            },
            ...$rows
        )
    )
);

Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12: array ( 0 => array ( 'product_id' => 101, 'name' => '', ), 1 => array ( 'product_id' => 201, 'name' => '', ), 2 => array ( 'product_id' => 301, 'name' => '', ), 3 => array ( 'product_id' => 102, 'name' => '', ), 4 => array ( 'product_id' => 202, 'name' => '', ), 5 => array ( 'product_id' => 302, 'name' => '', ), 6 => array ( 'product_id' => 103, 'name' => '', ), 7 => array ( 'product_id' => 303, 'name' => '', ), 8 => array ( 'product_id' => 304, 'name' => '', ), )

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