XSLT is a language used to transform XML documents into XHTML documents or other XML documents.

XSLT <xsl:if> element syntax

The

<xsl:if> element is used to place conditional tests against the contents of an XML file.

XSLT <xsl:if> element example

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:template match="/">
  <html>
  <body>
  <h2>My CD Collection</h2>
  <table border="1">
    <tr bgcolor="#9acd32">
      <th>Title</th>
      <th>Artist</th>
      <th>Price</th>
    </tr>
    <xsl:for-each select="catalog/cd">
      <xsl:if test="price &gt; 10">
        <tr>
          <td><xsl:value-of select="title"/></td>
          <td><xsl:value-of select="artist"/></td>
          <td><xsl:value-of select="price"/></td>
        </tr>
      </xsl:if>
    </xsl:for-each>
  </table>
  </body>
  </html></xsl:template>
 </xsl:stylesheet>