Domdocument: Why XSLT Transformation Output became single line? - php

Question

Hi I wanted to know how to retail the xml structure when using XSLT,
I have these code below,
/* XSLT File */
$xsl = new \DOMDocument;
$xsl->loadXML($xsltData[0]->xslt_template);
$xsl->preserveWhiteSpace = false;
$xsl->formatOutput = true;
/* Combine and Transform XML and XSLT */
$proc = new \XSLTProcessor;
$proc->importStyleSheet($xsl);
$proc->preserveWhiteSpace = false;
$proc->formatOutput = true;
$transformedOutPut = $proc->transformToXML($xml);
Here is my input xml
<?xml version="1.0" encoding="UTF-8"?>
<catalog>
<cd>
<titleA style="test" size="123">Kevin del </titleA>
<address>1119 Johnson Street, San Diego, California</address>
<country>USA</country>
<company>Columbia</company>
<price>10.90</price>
<year>1985</year>
</cd>
</catalog>
and here is my XSLT from the database with preserve spacing,
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<catalognew>
<container-title>My Data</container-title>
<xsl:for-each select="catalog/cd">
<cdnew>
<titlenew><xsl:value-of select="titleA"/></titlenew>
<addressnew>
<street><xsl:value-of select="address/street"/></street>
<city><xsl:value-of select="address/city"/></city>
<state><xsl:value-of select="address/state"/></state>
</addressnew>
</cdnew>
</xsl:for-each>
</catalognew>
</xsl:template>
</xsl:stylesheet>
Why doe it give me a single line result and not retaining its original structure,
<?xml version="1.0"?>
<catalognew><container-title>My Data</container-title><cdnew><titlenew>Kevin del </titlenew><addressnew><street>1119 JOHNSON STREET</street><city>SAN DIEGO</city><state>CALIFORNIA</state></addressnew></cdnew></catalognew>
I hope someone can help me,
Thank You,

Answer 1

The problem seems to be that you need to ensure the final document object has the settings to format the output. So rather than use transformToXML($xml), this creates a new document and ensures that this new document has the formatting options set before outputting the result...
$transformedOutPut = $proc->transformToDoc($xml);
$transformedOutPut->preserveWhiteSpace = true;
$transformedOutPut->formatOutput = true;
print_r($transformedOutPut->saveXML());
gives...
<?xml version="1.0"?>
<catalognew>
<container-title>My Data</container-title>
<cdnew>
<titlenew>Kevin del </titlenew>
<addressnew>
<street/>
<city/>
<state/>
</addressnew>
</cdnew>
</catalognew>