What are best practices for handling multidimensional arrays in PHP?

When working with multidimensional arrays in PHP, it is important to use nested loops to iterate through the array elements effectively. This allows you to access and manipulate the values stored in the inner arrays. Additionally, using functions like array_push() and array_pop() can help add or remove elements from the multidimensional array easily.

// Example of handling a multidimensional array in PHP
$multiArray = array(
    array(1, 2, 3),
    array(4, 5, 6),
    array(7, 8, 9)
);

// Accessing elements using nested loops
foreach ($multiArray as $innerArray) {
    foreach ($innerArray as $value) {
        echo $value . " ";
    }
}

// Adding elements to the multidimensional array
$newArray = array(10, 11, 12);
array_push($multiArray, $newArray);

// Removing elements from the multidimensional array
array_pop($multiArray);

// Printing the updated multidimensional array
print_r($multiArray);