What are the potential pitfalls of using global variables in PHP when manipulating arrays?

Using global variables in PHP when manipulating arrays can lead to issues with scope and unintended side effects. It is generally considered best practice to avoid global variables and instead pass variables as parameters to functions or use class properties. This helps to keep code more organized, maintainable, and easier to debug. 

// Avoid using global variables when manipulating arrays
function manipulateArray($array) {
    // Manipulate the array here
    return $array;
}

// Example usage
$array = [1, 2, 3];
$newArray = manipulateArray($array);

Keywords

global variables PHP arrays manipulation pitfalls

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