get-defined-functions.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.get-defined-functions" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>get_defined_functions</refname>
  <refpurpose>Returns an array of all defined functions</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>get_defined_functions</methodname>
   <methodparam choice="opt"><type>bool</type><parameter>exclude_disabled</parameter><initializer>&true;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Gets an array of all defined functions.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>exclude_disabled</parameter></term>
    <listitem>
     <para>
      Whether disabled functions should be excluded from the return value.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a multidimensional array containing a list of all defined
   functions, both built-in (internal) and user-defined. The internal
   functions will be accessible via <varname>$arr["internal"]</varname>, and
   the user defined ones using <varname>$arr["user"]</varname> (see example
   below).
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0</entry>
      <entry>
       The default value of the <parameter>exclude_disabled</parameter> parameter
       has been changed from &false; to &true;.
      </entry>
     </row>
     <row>
      <entry>7.0.15, 7.1.1</entry>
      <entry>
       The <parameter>exclude_disabled</parameter> parameter has been added.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>get_defined_functions</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
function myrow($id, $data)
{
    return "<tr><th>$id</th><td>$data</td></tr>\n";
}

$arr = get_defined_functions();

print_r($arr);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Array
(
    [internal] => Array
        (
            [0] => zend_version
            [1] => func_num_args
            [2] => func_get_arg
            [3] => func_get_args
            [4] => strlen
            [5] => strcmp
            [6] => strncmp
            ...
            [750] => bcscale
            [751] => bccomp
        )

    [user] => Array
        (
            [0] => myrow
        )

)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>function_exists</function></member>
    <member><function>get_defined_vars</function></member>
    <member><function>get_defined_constants</function></member>
    <member><function>get_declared_classes</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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