How can one ensure that the converted PHP code produces the same results as the original Python code?

When converting Python code to PHP, it's important to pay attention to differences in syntax and behavior between the two languages to ensure that the converted PHP code produces the same results as the original Python code. One common issue is the use of different methods for string manipulation and array handling. To solve this, carefully translate Python functions and methods into their PHP equivalents, making sure to account for any discrepancies in syntax or functionality.

// Original Python code
// for item in list:
//     print(item)

// Converted PHP code
$list = ['item1', 'item2', 'item3'];
foreach ($list as $item) {
    echo $item . "\n";
}