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<refentry xml:id="function.uopz-add-function" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>uopz_add_function</refname>
  <refpurpose>Adds non-existent function or method</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="procedural">
   <type>bool</type><methodname>uopz_add_function</methodname>
   <methodparam><type>string</type><parameter>function</parameter></methodparam>
   <methodparam><type>Closure</type><parameter>handler</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter role="reference">flags</parameter><initializer>ZEND_ACC_PUBLIC</initializer></methodparam>
  </methodsynopsis>
  <methodsynopsis role="procedural">
   <type>bool</type><methodname>uopz_add_function</methodname>
   <methodparam><type>string</type><parameter>class</parameter></methodparam>
   <methodparam><type>string</type><parameter>function</parameter></methodparam>
   <methodparam><type>Closure</type><parameter>handler</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter role="reference">flags</parameter><initializer>ZEND_ACC_PUBLIC</initializer></methodparam>
   <methodparam choice="opt"><type>int</type><parameter role="reference">all</parameter><initializer>&true;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Adds a non-existent function or method.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>class</parameter></term>
    <listitem>
     <para>
      The name of the class.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>function</parameter></term>
    <listitem>
     <para>
      The name of the function or method.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>handler</parameter></term>
    <listitem>
     <para>
      The <classname>Closure</classname> that defines the new function or method.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>flags</parameter></term>
    <listitem>
     <para>
      Flags to set for the new function or method.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>all</parameter></term>
    <listitem>
     <para>
      Whether all classes that descend from <parameter>class</parameter> will
      also be affected.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

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

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   <function>uopz_add_function</function> throws a <classname>RuntimeException</classname>
   if the function or method to add already exists.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example xml:id="uopz-add-function.example.basic">
   <title>Basic <function>uopz_add_function</function> Usage</title>
   <programlisting role="php">
<![CDATA[
<?php
uopz_add_function('foo', function () {echo 'bar';});
foo();
?>
]]>
   </programlisting>
   &example.outputs;
   <screen>
<![CDATA[
bar
]]>
   </screen>
  </example>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member><function>uopz_del_function</function></member>
   <member><function>uopz_set_return</function></member>
  </simplelist>
 </refsect1>

</refentry>

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