What are the potential pitfalls of using print(json_encode()) to pass data between PHP files?

Using print(json_encode()) to pass data between PHP files can lead to potential security vulnerabilities such as cross-site scripting (XSS) attacks if the data is not properly sanitized. To mitigate this risk, it is recommended to use htmlentities() function to encode the data before printing it to the output. 

// Encode the data using htmlentities() before printing
$data = ['key' => 'value'];
$encodedData = htmlentities(json_encode($data));
print($encodedData);

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print json_encode data passing PHP files potential pitfalls

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