What is the purpose of using IPTC data in PHP and what potential benefits does it offer?

IPTC data in PHP is used to store metadata information such as title, description, and keywords within an image file. This metadata can be useful for organizing and categorizing images, as well as for search engine optimization purposes. By accessing and manipulating IPTC data in PHP, developers can automate the process of adding and updating metadata for images in their applications.

// Get IPTC data from an image file
$iptc = iptcparse("image.jpg");

// Update IPTC data
$iptc["2#120"] = "New Title";
$iptc["2#105"] = "New Description";
$iptc["2#116"] = "New Keywords";

// Save updated IPTC data back to the image file
iptcembed(iptc_make_tag(2, 120, $iptc["2#120"]), iptc_make_tag(2, 105, $iptc["2#105"]), iptc_make_tag(2, 116, $iptc["2#116"]), "image.jpg");