What are the best practices for deleting specific elements from an array in PHP without affecting other elements?

When deleting specific elements from an array in PHP, it's important to maintain the integrity of the array by not affecting other elements. One way to achieve this is to use the unset() function to remove the element at a specific index without reindexing the array. Another approach is to use array_splice() to remove elements by specifying the start index and the number of elements to remove.

// Using unset() to delete specific element without reindexing
$array = [1, 2, 3, 4, 5];
unset($array[2]); // Deletes element at index 2
print_r($array); // Output: [1, 2, 4, 5]

// Using array_splice() to delete specific elements
$array = [1, 2, 3, 4, 5];
array_splice($array, 2, 1); // Deletes 1 element starting from index 2
print_r($array); // Output: [1, 2, 4, 5]