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POValidating SVG file in PHP with XMLReader
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copied!<p>I am validating a SVG document (which I believe to be valid) against the SVG spec. I'm using XMLReader in PHP, and would rather stick with that as I will be using XMLReader elsewhere; that said if there are other stream-based readers that will do this easier/better, do let me me know.</p> <p>OK, here's some code:</p> <pre><code> // Set some values for the purpose of this example $this->path = '/Users/jon/Development/Personal/Visualised/master/test-assets/import-png.svg'; $xsdPath = '/Users/jon/Development/Personal/Visualised/master/test-assets/xsd/SVG.xsd'; $reader = new XMLReader(); $reader->open($this->path); $valid = $reader->setSchema($xsdPath); $reader->close(); </code></pre> <p>OK, so the XSD files I've got in my <code>xsd</code> folder are:</p> <ul> <li><a href="http://www.w3.org/TR/2002/WD-SVG11-20020108/SVG.xsd" rel="nofollow">SVG.xsd</a></li> <li><a href="http://www.w3.org/XML/2008/06/xlink.xsd" rel="nofollow">xlink.xsd</a></li> <li><a href="http://www.w3.org/2000/10/xml.xsd" rel="nofollow">xml.xsd</a></li> </ul> <p>It seems that the parser imports the second and third XSD from the first - I want any dependencies to be stored on disk, not retrieved from the internet.</p> <p>OK, here's the output:</p> <pre><code> XMLReader::setSchema(): Element '{http://www.w3.org/2001/XMLSchema}import': Skipping import of schema located at '/Users/jon/Development/Personal/Visualised/master/test-assets/xsd/xml.xsd' for the namespace 'http://www.w3.org/XML/1998/namespace', since this namespace was already imported with the schema located at 'http://www.w3.org/2001/xml.xsd'. in /Users/jon/Development/Personal/Visualised/master/lib/Visualised/Document.php on line 45 Warning: XMLReader::setSchema(): Element '{http://www.w3.org/2001/XMLSchema}attribute': The attribute 'type' is not allowed. in /Users/jon/Development/Personal/Visualised/master/lib/Visualised/Document.php on line 45 Warning: XMLReader::setSchema(): Element '{http://www.w3.org/2001/XMLSchema}attribute': The attribute 'type' is not allowed. in /Users/jon/Development/Personal/Visualised/master/lib/Visualised/Document.php on line 45 Warning: XMLReader::setSchema(): Element '{http://www.w3.org/2001/XMLSchema}attribute': The attribute 'type' is not allowed. in /Users/jon/Development/Personal/Visualised/master/lib/Visualised/Document.php on line 45 Warning: XMLReader::setSchema(): Unable to set schema. This must be set prior to reading or schema contains errors. in /Users/jon/Development/Personal/Visualised/master/lib/Visualised/Document.php on line 45 </code></pre> <p>It seems like maybe I have imported the wrong version of a schema somewhere - I found all the XSD docs just through a web search. Any ideas?</p> <p>Edit: the last error suggests the schema should be set before reading the document. OK, so I've changed the code to this:</p> <pre><code>$reader = new XMLReader(); $valid = $reader->setSchema($xsdPath); $reader->open($this->path); $reader->close(); </code></pre> <p>-- some of the initial warnings go, but I still get the <code>Unable to set schema</code> one.</p>

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