What are some alternative methods or functions in PHP that can be used to re-index an array after deleting an element to prevent issues with missing or incorrect IDs?

When deleting an element from an array in PHP, the remaining elements will retain their original keys, potentially leading to missing or incorrect IDs. To re-index the array after deleting an element, you can use functions like array_values() or array_merge() to reset the keys sequentially. 

// Original array
$array = ['a', 'b', 'c', 'd'];

// Remove element at index 2
unset($array[2]);

// Re-index the array
$array = array_values($array);

// Output re-indexed array
print_r($array);

Keywords

PHP array_values array_splice unset re-indexing

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