Example collection.xml and collection.xsl files
Many examples in this reference require both an XML and an XSL file. We will use collection.xml and collection.xsl that contains the following:
Examples
Example collection.xml and collection.xsl files
Many examples in this reference require both an XML and an XSL file. We will use collection.xml and collection.xsl that contains the following:
collection.xml
<collection>
<cd>
<title>Fight for your mind</title>
<artist>Ben Harper</artist>
<year>1995</year>
</cd>
<cd>
<title>Electric Ladyland</title>
<artist>Jimi Hendrix</artist>
<year>1997</year>
</cd>
</collection>collection.xsl
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:param name="owner" select="'Nicolas Eliaszewicz'"/>
<xsl:output method="html" encoding="iso-8859-1" indent="no"/>
<xsl:template match="collection">
Hey! Welcome to <xsl:value-of select="$owner"/>'s sweet CD collection!
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="cd">
<h1><xsl:value-of select="title"/></h1>
<h2>by <xsl:value-of select="artist"/> - <xsl:value-of select="year"/></h2>
<hr />
</xsl:template>
</xsl:stylesheet>Error handling with libxml error handling functions
libxml offers a number of functions for handling errors, which can be employed to capture and deal with errors in XSLT processing.
fruits.xml
A valid XML file.
<fruits>
<fruit>Apple</fruit>
<fruit>Banana</fruit>
<fruit>Cherry</fruit>
</fruits>fruits.xsl
Contains an invalid select expression.
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" encoding="utf-8" indent="no"/>
<xsl:template match="fruits">
<ul>
<xsl:apply-templates/>
</ul>
</xsl:template>
<xsl:template match="fruit">
<li><xsl:value-of select="THIS IS A DELIBERATE ERROR!"/></li>
</xsl:template>
</xsl:stylesheet>Collating and printing errors
The example below captures and displays libxml errors raised when calling XSLTProcessor::importStyleSheet with a stylesheet containing an error.
<?php
$xmldoc = new DOMDocument();
$xsldoc = new DOMDocument();
$xsl = new XSLTProcessor();
$xmldoc->loadXML('fruits.xml');
$xsldoc->loadXML('fruits.xsl');
libxml_use_internal_errors(true);
$result = $xsl->importStyleSheet($xsldoc);
if (!$result) {
foreach (libxml_get_errors() as $error) {
echo "Libxml error: {$error->message}\n";
}
}
libxml_use_internal_errors(false);
if ($result) {
echo $xsl->transformToXML($xmldoc);
}
?>The above example will output something similar to:
Libxml error: Invalid expression
Libxml error: compilation error: file fruits.xsl line 9 element value-of
Libxml error: xsl:value-of : could not compile select expression 'THIS IS A DELIBERATE ERROR!'