How can the issue of not setting the Content-Type correctly lead to misinterpretation by clients?

When the Content-Type header is not set correctly, clients may misinterpret the data being sent by the server. This can lead to rendering issues, incorrect data processing, or even security vulnerabilities. To solve this issue, always ensure that the Content-Type header is set appropriately to match the data being sent, such as text/html for HTML content or application/json for JSON data. 

header('Content-Type: application/json');
echo json_encode($data);

Keywords

Content-Type misinterpretation clients PHP header

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