What is the significance of using empty brackets [] when adding elements to an array in PHP loops?

When adding elements to an array in PHP loops, using empty brackets [] signifies that the element should be appended to the end of the array. This is important because it ensures that the elements are added in the correct order and prevents overwriting existing elements in the array. 

$array = [];

for ($i = 0; $i < 5; $i++) {
    $array[] = $i;
}

print_r($array);

Keywords

PHP arrays loops empty brackets elements

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