What potential issues or errors could arise when using the provided PHP script to generate TXT files instead of XML files?

One potential issue that could arise when using the provided PHP script to generate TXT files instead of XML files is that the TXT files may not have the proper formatting or structure expected by other systems or applications. To solve this issue, you can modify the script to ensure that the TXT files are formatted correctly with the necessary information.

<?php
// Sample code to generate TXT files with proper formatting

$data = array(
    'name' => 'John Doe',
    'email' => 'johndoe@example.com',
    'phone' => '555-555-5555'
);

$txt = "Name: " . $data['name'] . "\n";
$txt .= "Email: " . $data['email'] . "\n";
$txt .= "Phone: " . $data['phone'] . "\n";

$file = fopen('output.txt', 'w');
fwrite($file, $txt);
fclose($file);

echo "TXT file generated successfully.";
?>