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(PHP Extension) Update a String Property in XMPDemonstrates how to open a JPG or TIF image file, access the XMP metadata, and update the value of a string property. (If the string property does not already exist, it is created.)
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $xmp = new CkXmp(); // Load a JPG or TIF image file. $success = $xmp->LoadAppFile('qa_data/xmp/AJ_123642_1511.tif'); if ($success != true) { print $xmp->lastErrorText() . "\n"; exit; } print 'Num embedded XMP docs: ' . $xmp->get_NumEmbedded() . "\n"; // This example assumes that XMP metadata is already present in the image file. if ($xmp->get_NumEmbedded() == 0) { print 'No XMP metadata already exists..' . "\n"; exit; } // Get the XMP metadata. // xml is a CkXml $xml = $xmp->GetEmbedded(0); // Show the XML: print $xml->getXml() . "\n"; // Update (overwrite) a string property. $xmp->AddSimpleStr($xml,'NumberofTimes','123'); $success = $xmp->SaveAppFile('qa_output/updated.tif'); if ($success != true) { print $xmp->lastErrorText() . "\n"; exit; } print 'Success.' . "\n"; ?> |
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