File: var-export.xml

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- splitted from ./en/functions/var.xml, last change in rev 1.6 -->
  <refentry id="function.var-export">
   <refnamediv>
    <refname>var_export</refname>
    <refpurpose>Outputs or returns a parsable string representation of a variable</refpurpose>
   </refnamediv>
   <refsect1 role="description">
    &reftitle.description;
     <methodsynopsis>
      <type>mixed</type><methodname>var_export</methodname>
      <methodparam><type>mixed</type><parameter>expression</parameter></methodparam>
      <methodparam choice="opt"><type>bool</type><parameter>return</parameter></methodparam>
     </methodsynopsis>
    <simpara>
     <function>var_export</function> gets structured information about the 
     given variable. It is similar to <function>var_dump</function>
     with one exception: the returned representation is valid PHP code.
    </simpara>
   </refsect1>
   <refsect1 role="parameters">
    &reftitle.parameters;
    <para>
     <variablelist>
      <varlistentry>
       <term><parameter>expression</parameter></term>
       <listitem>
        <para>
         The variable you want to export.
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><parameter>return</parameter></term>
       <listitem>
        <para>
         If used and set to &true;, <function>var_export</function> will return
         the variable representation instead of outputing it.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </para>
   </refsect1>
   <refsect1 role="returnvalues">
    &reftitle.returnvalues;
    <para>
     Returns the variable representation when the <parameter>return</parameter> 
     parameter is used and evaluates to &true;. Otherwise, this function will
     return &null;.
    </para>
   </refsect1>
   <refsect1 role="examples">
    &reftitle.examples;
    <para>
     <example>
      <title><function>var_export</function> Examples</title>
      <programlisting role="php">
<![CDATA[
<?php
$a = array (1, 2, array ("a", "b", "c"));
var_export($a);
?>
]]>
      </programlisting>
      &example.outputs;
      <screen>
<![CDATA[
array (
  0 => 1,
  1 => 2,
  2 => 
  array (
    0 => 'a',
    1 => 'b',
    2 => 'c',
  ),
)
]]>
      </screen>
      <programlisting role="php">
<![CDATA[
<?php

$b = 3.1;
$v = var_export($b, true);
echo $v;

?>
]]>
      </programlisting>
      &example.outputs;
      <screen>
<![CDATA[
3.1
]]>
      </screen>
     </example>
    </para>
   </refsect1>
   <refsect1 role="seealso">
    &reftitle.seealso;
    <para>
     <simplelist>
      <member><function>var_dump</function></member>
      <member><function>print_r</function></member>
     </simplelist>
    </para>  
   </refsect1>
  </refentry>

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