Search results for: "JPEG format"

What potential pitfalls should be considered when using mod_rewrite to disguise a gdlib image as a jpeg in PHP?

When using mod_rewrite to disguise a gdlib image as a jpeg in PHP, one potential pitfall to consider is that search engines may still recognize the tr...

What are the limitations of using PHP to manipulate JPEG images?

One limitation of using PHP to manipulate JPEG images is that the GD extension, which is commonly used for image processing in PHP, may not support al...

What is the purpose of using the header function with 'Content-type: image/jpeg' in PHP?

When using the header function with 'Content-type: image/jpeg' in PHP, the purpose is to specify the type of content being sent to the browser as an i...

How can PHP be used to save a JPEG file from HEX data?

To save a JPEG file from HEX data in PHP, you can use the `file_put_contents` function along with `hex2bin` to convert the HEX data to binary before s...

How can PHP be used to differentiate between a dynamically generated gdlib image and a real jpeg image?

To differentiate between a dynamically generated gdlib image and a real jpeg image in PHP, you can check the image MIME type using the getimagesize()...