runkit7-function-redefine.xml

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<!-- $Revision$ -->

<refentry xml:id="function.runkit7-function-redefine" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>runkit7_function_redefine</refname>
  <refpurpose>
   Replace a function definition with a new implementation
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>runkit7_function_redefine</methodname>
   <methodparam><type>string</type><parameter>function_name</parameter></methodparam>
   <methodparam><type>string</type><parameter>argument_list</parameter></methodparam>
   <methodparam><type>string</type><parameter>code</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>return_by_reference</parameter><initializer>&null;</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>doc_comment</parameter><initializer>&null;</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>return_type</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>is_strict</parameter></methodparam>
  </methodsynopsis>
  <methodsynopsis>
   <type>bool</type><methodname>runkit7_function_redefine</methodname>
   <methodparam><type>string</type><parameter>function_name</parameter></methodparam>
   <methodparam><type>Closure</type><parameter>closure</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>doc_comment</parameter><initializer>&null;</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>return_type</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>is_strict</parameter></methodparam>
  </methodsynopsis>

  &note.runkit.internal-override;

 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>function_name</parameter></term>
    <listitem>
     <para>
       Name of function to redefine
     </para>
    </listitem>
   </varlistentry>
    <varlistentry>
     <term><parameter>argument_list</parameter></term>
     <listitem>
      <para>
       New list of arguments to be accepted by function
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>code</parameter></term>
     <listitem>
      <para>
       New code implementation
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>closure</parameter></term>
     <listitem>
      <para>
       A <classname>closure</classname> that defines the function.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>return_by_reference</parameter></term>
     <listitem>
      <para>
       Whether the function should return by reference.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>doc_comment</parameter></term>
     <listitem>
      <para>
       The doc comment of the function.
      </para>
     </listitem>
    </varlistentry>
   <varlistentry>
    <term><parameter>return_type</parameter></term>
    <listitem>
     <para>
      The return type of the function.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>is_strict</parameter></term>
    <listitem>
     <para>
      Whether the function behaves as if it was declared in a file with <literal>strict_types=1</literal>
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>runkit7_function_redefine</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
function testme() {
  echo "Original Testme Implementation\n";
}
testme();
runkit7_function_redefine('testme','','echo "New Testme Implementation\n";');
testme();
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Original Testme Implementation
New Testme Implementation
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>runkit7_function_add</function></member>
    <member><function>runkit7_function_copy</function></member>
    <member><function>runkit7_function_rename</function></member>
    <member><function>runkit7_function_remove</function></member>
    <member><function>runkit7_method_redefine</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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