What are the best practices for initializing variables like $txt in a PHP loop to avoid overwriting previous data?

When initializing variables like $txt in a PHP loop, it's important to reset the variable at the beginning of each iteration to avoid overwriting previous data. This can be achieved by assigning an empty string or null value to the variable before the loop starts. 

$txt = ""; // Initialize $txt variable outside the loop

foreach ($array as $item) {
    $txt = ""; // Reset $txt variable at the beginning of each iteration

    // Your loop logic here
}

Keywords

PHP variable initialization loop data overwriting best practices

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