cece Sat Aug 16 11:33:22 2003 EDT
Modified files:
/phpdoc/en/reference/array/functions key.xml
Log:
added example
Index: phpdoc/en/reference/array/functions/key.xml
diff -u phpdoc/en/reference/array/functions/key.xml:1.4
phpdoc/en/reference/array/functions/key.xml:1.5
--- phpdoc/en/reference/array/functions/key.xml:1.4 Sun May 12 04:19:28 2002
+++ phpdoc/en/reference/array/functions/key.xml Sat Aug 16 11:33:22 2003
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
<refentry id="function.key">
<refnamediv>
@@ -15,6 +15,33 @@
<para>
<function>key</function> returns the index element of the
current array position.
+ </para>
+ <para>
+ <example>
+ <title><function>key</function> example</title>
+ <programlisting role="php">
+<![CDATA[
+<?php
+$array = array (
+ 'fruit1' => 'apple',
+ 'fruit2' => 'orange',
+ 'fruit3' => 'grape',
+ 'fruit4' => 'apple',
+ 'fruit5' => 'apple'
+);
+
+// this cycle echoes all associative array
+// key where value equals "apple"
+while ($fruit_name = current($array)) {
+ if ($fruit_name == 'apple') {
+ echo key($array).'<br>';
+ }
+ next($array);
+}
+?>
+]]>
+ </programlisting>
+ </example>
</para>
<para>
See also <function>current</function> and <function>next</function>.
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