What are the advantages and disadvantages of using the same identifier for both an array and a variable in a PHP loop?

When using the same identifier for both an array and a variable in a PHP loop, it can lead to confusion and potential errors in your code. To avoid this issue, it's best practice to use different identifiers for the array and the variable in order to maintain clarity and prevent unexpected behavior. 

// Incorrect way of using the same identifier for both array and variable in a loop
$items = [1, 2, 3, 4, 5];
foreach ($items as $item) {
    echo $item; // This will work, but can lead to confusion
}

// Correct way of using different identifiers for array and variable in a loop
$items = [1, 2, 3, 4, 5];
foreach ($items as $value) {
    echo $value; // This is clearer and less error-prone
}

Keywords

PHP identifier array variable loop

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