archived-doc-en/reference/xsl/xsltprocessor/setparameter.xml

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<refentry xml:id="xsltprocessor.setparameter" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>XSLTProcessor::setParameter</refname>
  <refpurpose>Set value for a parameter</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="XSLTProcessor">
   <modifier>public</modifier> <type>bool</type><methodname>XSLTProcessor::setParameter</methodname>
   <methodparam><type>string</type><parameter>namespace</parameter></methodparam>
   <methodparam><type>string</type><parameter>name</parameter></methodparam>
   <methodparam><type>string</type><parameter>value</parameter></methodparam>
  </methodsynopsis>
  <methodsynopsis role="XSLTProcessor">
   <modifier>public</modifier> <type>bool</type><methodname>XSLTProcessor::setParameter</methodname>
   <methodparam><type>string</type><parameter>namespace</parameter></methodparam>
   <methodparam><type>array</type><parameter>options</parameter></methodparam>
  </methodsynopsis>
  <para>
   Sets the value of one or more parameters to be used in subsequent 
   transformations with <classname>XSLTProcessor</classname>. If the 
   parameter doesn't exist in the stylesheet it will be ignored.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>namespace</parameter></term>
     <listitem>
      <para>
       The namespace URI of the XSLT parameter.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>name</parameter></term>
     <listitem>
      <para>
       The local name of the XSLT parameter.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>value</parameter></term>
     <listitem>
      <para>
       The new value of the XSLT parameter.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>options</parameter></term>
     <listitem>
      <para>
       An array of  <literal>name =&gt; value</literal> pairs.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <simpara>
   Throws a <exceptionname>ValueError</exceptionname> if any of the arguments
   contain null bytes.
  </simpara>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.4.0</entry>
      <entry>
       Now throws a <exceptionname>ValueError</exceptionname> if any of the
       arguments contain null bytes instead of silently truncating.
      </entry>
     </row>
     <row>
      <entry>8.4.0</entry>
      <entry>
       It is now possible to set a parameter value containing both single and
       double quotes. Prior to PHP 8.4.0, this resulted in a warning.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Changing the owner before the transformation</title>
    <programlisting role="php">
<![CDATA[
<?php

$collections = array(
    'Marc Rutkowski' => 'marc',
    'Olivier Parmentier' => 'olivier'
);

$xsl = new DOMDocument;
$xsl->load('collection.xsl');

// Configure the transformer
$proc = new XSLTProcessor;
$proc->importStyleSheet($xsl); // attach the xsl rules

foreach ($collections as $name => $file) {
    // Load the XML source
    $xml = new DOMDocument;
    $xml->load('collection_' . $file . '.xml');

    $proc->setParameter('', 'owner', $name);
    $proc->transformToURI($xml, 'file:///tmp/' . $file . '.html');
}

?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>XSLTProcessor::getParameter</function></member>
    <member><function>XSLTProcessor::removeParameter</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>
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