info@michaelplas.de 
<textarea style=" min-width:500px; max-width:100%;min-height:50px;height:100%;width:100%;">function read_xmp_metadata($image_path) {
    // Check if the image exists
    if (!file_exists($image_path)) {
        return false;
    }
    
    // Read the XMP metadata from the image
    $handle = fopen($image_path, 'rb');
    if (!$handle) {
        return false;
    }
    $chunk_size = 1024 * 16;
    $xmp_start = '<x:xmpmeta';
    $xmp_end = '</x:xmpmeta>';
    $xmp_metadata = '';
    while (!feof($handle)) {
        $chunk = fread($handle, $chunk_size);
        if (strpos($chunk, $xmp_start) !== false) {
            $xmp_start_pos = strpos($chunk, $xmp_start);
            $xmp_end_pos = strpos($chunk, $xmp_end);
            if ($xmp_end_pos !== false) {
                $xmp_metadata .= substr($chunk, $xmp_start_pos, $xmp_end_pos - $xmp_start_pos + strlen($xmp_end));
                break;
            } else {
                $xmp_metadata .= substr($chunk, $xmp_start_pos);
                while (!feof($handle)) {
                    $chunk = fread($handle, $chunk_size);
                    $xmp_metadata .= $chunk;
                    if (strpos($chunk, $xmp_end) !== false) {
                        break;
                    }
                }
                break;
            }
        }
    }
    fclose($handle);
    
    // Check if XMP metadata exists
    if (!$xmp_metadata) {
        return false;
    }
    
    // Return the XMP metadata
    return $xmp_metadata;
}

$xmp_metadata = read_xmp_metadata('./testbild.webp');
if ($xmp_metadata) {
    echo $xmp_metadata;
} else {
    echo 'Failed to read XMP metadata';
}
</textarea>
<textarea style=" min-width:500px; max-width:100%;min-height:50px;height:100%;width:100%;"><x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 9.0-c000 79.da4a7e5ef, 2022/11/22-13:50:07        ">
   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <rdf:Description rdf:about=""
            xmlns:dc="http://purl.org/dc/elements/1.1/"
            xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/"
            xmlns:aux="http://ns.adobe.com/exif/1.0/aux/"
            xmlns:xmp="http://ns.adobe.com/xap/1.0/"
            xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
            xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#"
            xmlns:stRef="http://ns.adobe.com/xap/1.0/sType/ResourceRef#"
            xmlns:acdsee="http://ns.acdsee.com/iptc/1.0/"
            xmlns:xmpRights="http://ns.adobe.com/xap/1.0/rights/"
            xmlns:plus="http://ns.useplus.org/ldf/xmp/1.0/"
            xmlns:exifEX="http://cipa.jp/exif/1.0/"
            xmlns:Iptc4xmpCore="http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/"
            xmlns:tiff="http://ns.adobe.com/tiff/1.0/"
            xmlns:exif="http://ns.adobe.com/exif/1.0/">
         <dc:format>application/vnd.adobe.photoshop</dc:format>
         <dc:rights>
            <rdf:Alt>
               <rdf:li xml:lang="x-default">Victor Mayer GmbH &amp; Co. KG</rdf:li>
            </rdf:Alt>
         </dc:rights>
         <dc:creator>
            <rdf:Seq>
               <rdf:li>Victor Mayer Gmbh &amp; Co. KG</rdf:li>
            </rdf:Seq>
         </dc:creator>
         <dc:description>
            <rdf:Alt>
               <rdf:li xml:lang="x-default">Oval signet ring solid yellow gold Romeo &amp; Juliet without engraving</rdf:li>
            </rdf:Alt>
         </dc:description>
         <dc:subject>
            <rdf:Bag/>
         </dc:subject>
         <photoshop:DateCreated>2022-09-22</photoshop:DateCreated>
         <photoshop:Headline>Oval signet ring yellow gold Romeo &amp; Juliet</photoshop:Headline>
         <photoshop:LegacyIPTCDigest>C475B40D39213AF3F88CDB2CAC0D4853</photoshop:LegacyIPTCDigest>
         <photoshop:ColorMode>3</photoshop:ColorMode>
         <photoshop:ICCProfile>sRGB IEC61966-2.1</photoshop:ICCProfile>
         <photoshop:DocumentAncestors>
            <rdf:Bag>
               <rdf:li>xmp.did:8E66F9B11B3268119109C67F8363F33E</rdf:li>
            </rdf:Bag>
         </photoshop:DocumentAncestors>
         <aux:Lens>HC 120</aux:Lens>
         <aux:SerialNumber>DC57104066</aux:SerialNumber>
         <aux:ApproximateFocusDistance>643/1000</aux:ApproximateFocusDistance>
         <xmp:CreateDate>2022-09-22T08:28:21</xmp:CreateDate>
         <xmp:ModifyDate>2023-02-22T15:21:48+01:00</xmp:ModifyDate>
         <xmp:MetadataDate>2023-02-22T15:21:48+01:00</xmp:MetadataDate>
         <xmp:CreatorTool>Adobe Photoshop CS2 Windows</xmp:CreatorTool>
         <xmp:Rating>0</xmp:Rating>
         <xmp:Label/>
         <xmpMM:InstanceID>xmp.iid:8912faa9-a585-4853-ba3c-41b404f0ae74</xmpMM:InstanceID>
         <xmpMM:DocumentID>adobe:docid:photoshop:18354fed-1e0e-af4c-8923-0d46b6d94e3b</xmpMM:DocumentID>
         <xmpMM:OriginalDocumentID>xmp.did:8E66F9B11B3268119109C67F8363F33E</xmpMM:OriginalDocumentID>
         <xmpMM:History>
            <rdf:Seq>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:8E66F9B11B3268119109C67F8363F33E</stEvt:instanceID>
                  <stEvt:when>2022-09-22T08:48:47+02:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop CS5 Macintosh</stEvt:softwareAgent>
                  <stEvt:changed>/</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:91c1d31f-4274-4496-b077-3aad470782ad</stEvt:instanceID>
                  <stEvt:when>2022-09-28T15:17:04+02:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop 23.2 (Macintosh)</stEvt:softwareAgent>
                  <stEvt:changed>/</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>converted</stEvt:action>
                  <stEvt:parameters>from image/tiff to image/jpeg</stEvt:parameters>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>derived</stEvt:action>
                  <stEvt:parameters>converted from image/tiff to image/jpeg</stEvt:parameters>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:ecedc61b-f193-4e11-9e2c-299eff9c4b29</stEvt:instanceID>
                  <stEvt:when>2022-09-28T15:17:04+02:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop 23.2 (Macintosh)</stEvt:softwareAgent>
                  <stEvt:changed>/</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:940ec78e-315a-0c48-acde-6c01e220e138</stEvt:instanceID>
                  <stEvt:when>2022-12-21T10:26:24+01:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop Camera Raw 15.1</stEvt:softwareAgent>
                  <stEvt:changed>/metadata</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:1a40a4d4-01a4-014c-a58d-a538bea7a881</stEvt:instanceID>
                  <stEvt:when>2023-01-30T15:23:39+01:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop Camera Raw 15.0 (Windows)</stEvt:softwareAgent>
                  <stEvt:changed>/metadata</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:9fc45c53-a7b9-4198-a628-57c1f8d4c711</stEvt:instanceID>
                  <stEvt:when>2023-02-22T15:21:48+01:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop 24.1 (Macintosh)</stEvt:softwareAgent>
                  <stEvt:changed>/</stEvt:changed>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>converted</stEvt:action>
                  <stEvt:parameters>from image/jpeg to application/vnd.adobe.photoshop</stEvt:parameters>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>derived</stEvt:action>
                  <stEvt:parameters>converted from image/jpeg to application/vnd.adobe.photoshop</stEvt:parameters>
               </rdf:li>
               <rdf:li rdf:parseType="Resource">
                  <stEvt:action>saved</stEvt:action>
                  <stEvt:instanceID>xmp.iid:8912faa9-a585-4853-ba3c-41b404f0ae74</stEvt:instanceID>
                  <stEvt:when>2023-02-22T15:21:48+01:00</stEvt:when>
                  <stEvt:softwareAgent>Adobe Photoshop 24.1 (Macintosh)</stEvt:softwareAgent>
                  <stEvt:changed>/</stEvt:changed>
               </rdf:li>
            </rdf:Seq>
         </xmpMM:History>
         <xmpMM:DerivedFrom rdf:parseType="Resource">
            <stRef:instanceID>xmp.iid:9fc45c53-a7b9-4198-a628-57c1f8d4c711</stRef:instanceID>
            <stRef:documentID>adobe:docid:photoshop:c6d86893-c8f0-4044-b65b-0217ae6af1c5</stRef:documentID>
            <stRef:originalDocumentID>xmp.did:8E66F9B11B3268119109C67F8363F33E</stRef:originalDocumentID>
         </xmpMM:DerivedFrom>
         <acdsee:caption/>
         <acdsee:datetime>2022-09-22T08:28:21.000</acdsee:datetime>
         <acdsee:author/>
         <acdsee:rating>0</acdsee:rating>
         <acdsee:notes/>
         <acdsee:tagged>False</acdsee:tagged>
         <acdsee:categories>&lt;Categories&gt;&lt;Category Assigned="0"&gt;Collections&lt;Category Assigned="1"&gt;Signet Rings&lt;Category Assigned="1"&gt;Romeo &amp;amp; Juliet&lt;/Category&gt;&lt;Category Assigned="1"&gt;Arbeitskatalog-Bild&lt;/Category&gt;&lt;Category Assigned="1"&gt;Plattenring&lt;/Category&gt;&lt;/Category&gt;&lt;/Category&gt;&lt;/Categories&gt;</acdsee:categories>
         <acdsee:collections/>
         <xmpRights:Marked>True</xmpRights:Marked>
         <plus:ModelReleaseStatus/>
         <plus:CopyrightOwner>
            <rdf:Seq>
               <rdf:li rdf:parseType="Resource">
                  <plus:CopyrightOwnerName>Victor Mayer Gmbh &amp; Co. KG</plus:CopyrightOwnerName>
               </rdf:li>
            </rdf:Seq>
         </plus:CopyrightOwner>
         <exifEX:PhotographicSensitivity>50</exifEX:PhotographicSensitivity>
         <exifEX:BodySerialNumber>DC57104066</exifEX:BodySerialNumber>
         <exifEX:LensModel>HC 120</exifEX:LensModel>
         <Iptc4xmpCore:CreatorContactInfo rdf:parseType="Resource">
            <Iptc4xmpCore:CiAdrExtadr>Simmlerstraße 14</Iptc4xmpCore:CiAdrExtadr>
            <Iptc4xmpCore:CiAdrCity>Pforzheim</Iptc4xmpCore:CiAdrCity>
            <Iptc4xmpCore:CiAdrPcode>75172</Iptc4xmpCore:CiAdrPcode>
            <Iptc4xmpCore:CiAdrCtry>Deutschland</Iptc4xmpCore:CiAdrCtry>
            <Iptc4xmpCore:CiTelWork>+49 7231 91870</Iptc4xmpCore:CiTelWork>
            <Iptc4xmpCore:CiEmailWork>info@victor-mayer.com</Iptc4xmpCore:CiEmailWork>
            <Iptc4xmpCore:CiUrlWork>www.victor-mayer.com</Iptc4xmpCore:CiUrlWork>
         </Iptc4xmpCore:CreatorContactInfo>
         <Iptc4xmpCore:AltTextAccessibility>
            <rdf:Alt>
               <rdf:li xml:lang="x-default"> </rdf:li>
            </rdf:Alt>
         </Iptc4xmpCore:AltTextAccessibility>
         <Iptc4xmpCore:ExtDescrAccessibility>
            <rdf:Alt>
               <rdf:li xml:lang="x-default"> </rdf:li>
            </rdf:Alt>
         </Iptc4xmpCore:ExtDescrAccessibility>
         <tiff:ImageWidth>1701</tiff:ImageWidth>
         <tiff:ImageLength>1629</tiff:ImageLength>
         <tiff:BitsPerSample>
            <rdf:Seq>
               <rdf:li>8</rdf:li>
               <rdf:li>8</rdf:li>
               <rdf:li>8</rdf:li>
            </rdf:Seq>
         </tiff:BitsPerSample>
         <tiff:PhotometricInterpretation>2</tiff:PhotometricInterpretation>
         <tiff:Orientation>1</tiff:Orientation>
         <tiff:SamplesPerPixel>3</tiff:SamplesPerPixel>
         <tiff:XResolution>3000000/10000</tiff:XResolution>
         <tiff:YResolution>3000000/10000</tiff:YResolution>
         <tiff:ResolutionUnit>2</tiff:ResolutionUnit>
         <tiff:Make>Hasselblad</tiff:Make>
         <tiff:Model>Hasselblad H3D-39</tiff:Model>
         <exif:ExifVersion>0210</exif:ExifVersion>
         <exif:ColorSpace>1</exif:ColorSpace>
         <exif:PixelXDimension>1701</exif:PixelXDimension>
         <exif:PixelYDimension>1629</exif:PixelYDimension>
         <exif:DateTimeOriginal>2022-09-22T08:28:21</exif:DateTimeOriginal>
         <exif:ExposureTime>1/90</exif:ExposureTime>
         <exif:FNumber>18/1</exif:FNumber>
         <exif:ExposureProgram>1</exif:ExposureProgram>
         <exif:ISOSpeedRatings>
            <rdf:Seq>
               <rdf:li>50</rdf:li>
            </rdf:Seq>
         </exif:ISOSpeedRatings>
         <exif:ShutterSpeedValue>871321773/134217728</exif:ShutterSpeedValue>
         <exif:ApertureValue>8339850/1000000</exif:ApertureValue>
         <exif:MaxApertureValue>4/1</exif:MaxApertureValue>
         <exif:SubjectDistance>643/1000</exif:SubjectDistance>
         <exif:MeteringMode>255</exif:MeteringMode>
         <exif:Flash rdf:parseType="Resource">
            <exif:Fired>False</exif:Fired>
            <exif:Return>0</exif:Return>
            <exif:Mode>0</exif:Mode>
            <exif:Function>False</exif:Function>
            <exif:RedEyeMode>False</exif:RedEyeMode>
         </exif:Flash>
         <exif:FocalLength>120/1</exif:FocalLength>
         <exif:FocalPlaneXResolution>147059/100</exif:FocalPlaneXResolution>
         <exif:FocalPlaneYResolution>147059/100</exif:FocalPlaneYResolution>
         <exif:FocalPlaneResolutionUnit>3</exif:FocalPlaneResolutionUnit>
         <exif:FocalLengthIn35mmFilm>84</exif:FocalLengthIn35mmFilm>
         <exif:SerialNumber>DC57104066</exif:SerialNumber>
         <exif:Lens>HC 120</exif:Lens>
      </rdf:Description>
   </rdf:RDF>
</x:xmpmeta>
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                                    
                                                                                </textarea>