Example of how to use PHP functions in template.php in sobipro template

details.xsl

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:php="http://php.net/xsl">
 <xsl:template match="/entry_details">
    <xsl:output method="xml" doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"/> 
<xsl:variable name="title"><xsl:value-of select="entry/name" /></xsl:variable>
<h1><xsl:value-of select="php:function('RanchBrokers::PrettyTitle', $title)" disable-output-escaping="yes"/></h1>
    </xsl:template>
</xsl:stylesheet>

template.php

<?php
 public static function PrettyTitle($txt)
  {
    $txt = explode (" ", $txt);
    
    $first_word = "<em>" . $txt[0] . "</em>";
    
    if (count($txt) > 0) {
      
      unset($txt[0]);
      $rest = "";
      foreach ($txt as $word) {
        $rest .= " " . $word;
      }
    
      $PrettyTitle = $first_word . $rest;
    }
    else {
      $PrettyTitle = $first_word;
    } 
    
    return $PrettyTitle;

  }
?>