What potential pitfalls should be avoided when handling CSV exports in PHP to prevent including unintended content?

When handling CSV exports in PHP, it's important to sanitize the data to prevent unintended content, such as malicious scripts or SQL injection attacks, from being included in the exported file. One way to do this is by using the fputcsv function, which automatically escapes special characters. Additionally, always validate the data before exporting it to ensure that only the necessary and safe information is included in the CSV file. 

// Example of exporting data to CSV file with proper sanitization
$filename = 'exported_data.csv';
$data = array(
    array('John Doe', 'john.doe@example.com', '123456789'),
    array('Jane Smith', 'jane.smith@example.com', '987654321'),
);

$fp = fopen($filename, 'w');
foreach ($data as $fields) {
    fputcsv($fp, $fields);
}
fclose($fp);

Keywords

CSV exports PHP data validation injection vulnerabilities

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