What are some best practices for efficiently removing array elements in PHP without compromising code readability or performance?

When removing elements from an array in PHP, it's important to do so efficiently without sacrificing code readability or performance. One common approach is to use the unset() function to remove specific elements by their keys. Another method is to use array_filter() to create a new array with only the elements that meet a certain condition. Both of these approaches can help maintain code clarity while efficiently modifying arrays.

// Using unset() to efficiently remove specific elements from an array
$myArray = [1, 2, 3, 4, 5];
unset($myArray[2]); // Removes the element at index 2
print_r($myArray);

// Using array_filter() to efficiently remove elements based on a condition
$myArray = [1, 2, 3, 4, 5];
$myArray = array_filter($myArray, function($value) {
    return $value != 3; // Removes the element with the value 3
});
print_r($myArray);