Search results for: "file type checking"

What are the potential risks of relying on the file type provided by the browser during file upload in PHP?

Relying on the file type provided by the browser during file upload in PHP can be risky as this information can be easily manipulated by the user, lea...

How can bugs in PHP versions affect MIME type detection for file content?

Bugs in PHP versions can affect MIME type detection for file content by causing incorrect or unreliable results when using functions like `mime_conten...

What best practices should be followed when checking file sizes and types during file uploads in PHP to prevent errors like incorrect MIME types?

When checking file sizes and types during file uploads in PHP, it is important to validate both the file size and MIME type to prevent errors like inc...

What are some alternative methods for identifying file types in PHP other than using $_FILES['upload']['type']?

When uploading files in PHP, relying solely on $_FILES['upload']['type'] can be unreliable as it is based on the MIME type sent by the client, which c...

What are the best practices for ensuring accurate file type detection using PHP functions like finfo_file()?

When using PHP functions like finfo_file() to detect file types, it is important to ensure accurate detection by validating the file against its actua...