From d0fefa8d9437d8dc262ef9dcb07d5732d15a6083 Mon Sep 17 00:00:00 2001
From: Mehdi Achour <didou@php.net>
Date: Wed, 12 Nov 2003 21:06:32 +0000
Subject: [PATCH] fixing #26225 adding an example correcting the callback
 parameter name

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@144208 c90b9560-bf6c-de11-be94-00142212c4b1
---
 reference/array/functions/array-filter.xml | 45 +++++++++++++++++++++-
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/reference/array/functions/array-filter.xml b/reference/array/functions/array-filter.xml
index 24be7ba8c6..5592dfc125 100644
--- a/reference/array/functions/array-filter.xml
+++ b/reference/array/functions/array-filter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.12 $ -->
+<!-- $Revision: 1.13 $ -->
 <!-- splitted from ./en/functions/array.xml, last change in rev 1.62 -->
   <refentry id="function.array-filter">
    <refnamediv>
@@ -13,7 +13,7 @@
      <methodsynopsis>
       <type>array</type><methodname>array_filter</methodname>
       <methodparam><type>array</type><parameter>input</parameter></methodparam>
-      <methodparam choice="opt"><type>callback</type><parameter>function</parameter></methodparam>
+      <methodparam choice="opt"><type>callback</type><parameter>callback</parameter></methodparam>
      </methodsynopsis>
     <para>
      <function>array_filter</function> iterates over each value in
@@ -77,6 +77,47 @@ Array
      <function>array_filter</function> is applied to. If the array
      is changed, the behavior of this function is undefined.
     </para>
+    <para>
+     If the <parameter>callback</parameter> function is not supplied,
+     <function>array_filter</function> will remove all the entries of
+     <parameter>input</parameter> that are equal to &false;. See <link
+     linkend="language.types.boolean.casting">converting to boolean</link> 
+     for more information.
+    </para>
+    <para>
+     <example>
+      <title><function>array_filter</function> without
+      <parameter>callback</parameter></title>
+      <programlisting role="php">
+<![CDATA[
+<?php
+
+$entry = array(
+             0 => 'foo',
+             1 => false,
+             2 => -1,
+             3 => null,
+             4 => ''
+          );
+
+print_r(array_filter($entry));
+?>
+]]>
+      </programlisting>
+      <para>
+       This will output :
+      </para>
+      <screen>
+<![CDATA[
+Array
+(
+    [0] => foo
+    [2] => -1
+)
+]]>
+      </screen>
+     </example>
+    </para>
     <para>
      See also <function>array_map</function>,
      <function>array_reduce</function>, and <function>array_walk</function>.