(PHP ActiveX) Get a Structure Property Value from XMP

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and fetch the value of a structure property, such as the Iptc4xmpCore:CiTelWork (found within the Iptc4xmpCore:CreatorContactInfo structure).

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xmp')
$xmp = new COM("Chilkat.Xmp");

// Load a JPG or TIF image file.
// Sample JPG's with XMP metadata may be found at:
// http://www.chilkatsoft.com/testData/xmp/sample1.jpg
// http://www.chilkatsoft.com/testData/xmp/sample2.jpg
// http://www.chilkatsoft.com/testData/xmp/sample3.jpg
$success = $xmp->LoadAppFile('sample1.jpg');
if ($success != 1) {
    print $xmp->LastErrorText . "\n";
    exit;
}

print 'Num embedded XMP docs: ' . $xmp->NumEmbedded . "\n";

// Assuming there is at least one, get the 1st.
// (There is typically never more than one, but theoretically it's possible.)
// xml is a Chilkat.Xml
$xml = $xmp->GetEmbedded(0);
if ($xmp->LastMethodSuccess == 1) {

    $propVal = $xmp->getStructValue($xml,'Iptc4xmpCore:CreatorContactInfo','Iptc4xmpCore:CiTelWork');
    if ($xmp->LastMethodSuccess != 1) {
        print 'Not found.' . "\n";
    }
    else {
        print $propVal . "\n";
    }

}
else {
    print $xmp->LastErrorText . "\n";
}


?>