How can one efficiently loop through a multidimensional array in PHP to avoid unwanted outputs?

When looping through a multidimensional array in PHP, it's important to use nested loops to access each level of the array properly. This helps avoid unwanted outputs by ensuring that you are iterating through each element in a structured manner. By using nested loops, you can efficiently traverse through the multidimensional array and access the desired values without encountering unexpected results.

$multiArray = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
];

foreach ($multiArray as $innerArray) {
    foreach ($innerArray as $value) {
        echo $value . " ";
    }
}