php-doc-en/reference/strings/functions/stripslashes.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.stripslashes">
 <refnamediv>
  <refname>stripslashes</refname>
  <refpurpose>Un-quote string quoted with <function>addslashes</function></refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>stripslashes</methodname>
   <methodparam><type>string</type><parameter>str</parameter></methodparam>
  </methodsynopsis>
  <para>
   Un-quotes a quoted string.
  </para>
  <note>
   <para>
    If <link linkend="ini.magic-quotes-sybase">magic_quotes_sybase</link> is
    on, no backslashes are stripped off but two apostrophes are replaced by
    one instead.
   </para>
  </note>
  <para>
   An example use of <function>stripslashes</function> is when the PHP
   directive <link linkend="ini.magic-quotes-gpc">magic_quotes_gpc</link>
   is <literal>on</literal> (it's on by default), and you aren't inserting
   this data into a place (such as a database) that requires escaping.
   For example, if you're simply outputting data straight from an HTML form.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>str</parameter></term>
     <listitem>
      <para>
       The input string.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a string with backslashes stripped off.
   (<literal>\'</literal> becomes <literal>'</literal> and so on.)
   Double backslashes (<literal>\\</literal>) are made into a single
   backslash (<literal>\</literal>).
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>stripslashes</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$str = "Is your name O\'reilly?";

// Outputs: Is your name O'reilly?
echo stripslashes($str);
?>
]]>
    </programlisting>
   </example>
  </para>
  <note>
   <para>
    <function>stripslashes</function> is not recursive. If you want to apply
    this function to a multi-dimensional array, you need to use a recursive
    function.
   </para>
  </note>
  <para>
   <example>
    <title>Using <function>stripslashes</function> on an array</title>
    <programlisting role="php">
<![CDATA[
<?php
function stripslashes_deep($value)
{
    $value = is_array($value) ?
                array_map('stripslashes_deep', $value) :
                stripslashes($value);

    return $value;
}

// Example
$array = array("f\\'oo", "b\\'ar", array("fo\\'o", "b\\'ar"));
$array = stripslashes_deep($array);

// Output
print_r($array);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Array
(
    [0] => f'oo
    [1] => b'ar
    [2] => Array
        (
            [0] => fo'o
            [1] => b'ar
        )

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

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>addslashes</function></member>
    <member><function>get_magic_quotes_gpc</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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