Search results for: "EXIF header"

How can PHP developers account for differences in image metadata (EXIF, IPTC) when comparing images using hashing functions?

When comparing images using hashing functions, PHP developers can account for differences in image metadata (EXIF, IPTC) by stripping this metadata be...

What are the best practices for handling IPTC/EXIF data in PHP scripts?

When handling IPTC/EXIF data in PHP scripts, it is important to sanitize and validate the data to prevent any security vulnerabilities. One way to do...

What are the potential reasons for receiving a "call to undefined function" error when trying to read JPG header data using PHP?

When receiving a "call to undefined function" error when trying to read JPG header data using PHP, it is likely that the necessary PHP extension for h...

What role do EXIF data play in causing errors like "is not a valid JPEG file" when using imagecreatefromjpeg() in PHP?

When using the imagecreatefromjpeg() function in PHP, errors like "is not a valid JPEG file" can occur due to incorrect or missing EXIF data in the JP...

How can PHP be used to extract EXIF data from an image on the server side, while identifying the active image on the client side?

To extract EXIF data from an image on the server side using PHP, you can use the `exif_read_data()` function. To identify the active image on the clie...