Online PHP editor | output for N781T

@ 2015-12-09T04:27:08Z

<?php

$arr = [
    0 => [
        'id'   => 123-456-000-000,
        'name' => 'john'
    ],
    
    1 => [
        'id'   => 123-456-789-014,
        'name' => 'james'
    ]
];

$arr1 = [
    0 => [
        'id'      => 123-456-000-000,
        'address' => 'Japan'
    ],
    
    1 => [
        'id'      => 123-456-789-014,
        'address' => 'Spain'
    ]
];


foreach ($arr1 as $key => $inner) {
    $arr1[$key]["address"] = $inner["address"];
}

print_r(arr1);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Fatal error: Uncaught Error: Undefined constant "arr1" in /in/N781T:32 Stack trace: #0 {main} thrown in /in/N781T on line 32
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: Use of undefined constant arr1 - assumed 'arr1' (this will throw an Error in a future version of PHP) in /in/N781T on line 32 arr1
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33: Notice: Use of undefined constant arr1 - assumed 'arr1' in /in/N781T on line 32 arr1

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