Online PHP editor | output for B1Siu

@ 2018-09-21T14:29:57Z

<?php

function get_invoices() {
    return [
        [
            "id" => 1,
            "customer_id" => 81136,
        ],
        [
            "id" => 2,
            "customer_id" => 81136,
        ],
        [
            "id" => 3,
            "customer_id" => 81100,
        ],
    ];
}

function get_customer_invoices($customer_id = null) {
    if ($customer_id) {
        // return result of `array_filter` from `get_customer_invoices` function
        return array_filter(get_invoices(), function ($item) use ($customer_id) {
            // array_filter's callback should return `true` or `false` 
            return $item['customer_id'] === $customer_id;
        });
    } else {
        return false;
    }
}

var_dump(get_customer_invoices(81136));

Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 5.6.38, 7.1.0 - 7.1.33, 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 - 8.3.27, 8.4.1 - 8.4.14: array(2) { [0]=> array(2) { ["id"]=> int(1) ["customer_id"]=> int(81136) } [1]=> array(2) { ["id"]=> int(2) ["customer_id"]=> int(81136) } }

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