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aktuelle.kurse/old_m133/4_Modulinhalte_und_Uebungen/00-Anwendungen-Beispiele-Uebungen/PHP_Referenz/funktionsreferenz/array_funktionen/key.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>key</title>
<link rel="stylesheet" type="text/css" href="../../src/self.css">
<meta name="description" content="Gibt den aktuellen Bezeichner eines Arrays aus">
<meta name="keywords" content="SELFPHP, PHP, Array-Funktionen, key">
<meta name="author" content="Damir Enseleit, mail@selfphp.info">
<meta name="DC.Contributer" content="Matthias Hupp, m.hupp@selfphp3.de">
<meta name="DC.Publisher" content="Damir Enseleit, mail@selfphp.info">
<meta name="DC.Date" content="2001-08-06T12:18+01:00">
<meta name="DC.Identifier" content="http://www.selfphp3.de/funktionsreferenz/array_funktionen/key.html">
<meta name="DC.Language" content="de">
<meta name="DC.Rights" content="../../editorial/index.html">
<meta name="SELF.Firstdate" content="2001-08-06T12:18+01:00">
<meta name="SELF.Version" content="1">
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<meta name="SELF.Path" content="SELFPHP == ../../index.php // Funktionsreferenz == ../index.php // Array-Funktionen == index.html">
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<body bgcolor="#FFFFFF" text="#000000" link="#AA5522" vlink="#772200" alink="#000000">
<table cellpadding="4" cellspacing="0" border="0" width="100%">
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<td bgcolor="#FFEEDD" class="nav"><a class="an" name="top"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a> <a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="index.html"><b>Array-Funktionen</b></a></td>
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<td bgcolor="#EEEEEE" class="doc" valign="bottom" width="100%">
<h2>key</h2></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" class="doc" valign="top" align="center"> <img src="../../src/dokx.gif" width="30" height="20" vspace="6" border="0" alt="Informationsseite">
</td>
<td bgcolor="#FFFFFF" valign="top" nowrap>
<p> <img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#befehl"><b>Befehl</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#version"><b>Version</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#beschreibung"><b>Beschreibung</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#beispiel1"><b>Beispiel1</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#ausgabe1"><b>Ausgabe1</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#beispiel2"><b>Beispiel2</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#ausgabe2"><b>Ausgabe2</b></a><br>
</p>
</td>
</tr>
<tr>
<td colspan=3 bgcolor="#EEEEEE" class="doc"><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;</td>
</tr>
</table>
<h2 class="Sh2"><a class="an" name="befehl">Befehl</a></h2>
<table width="100%" cellpadding=10><tr>
<td class="xmpcode" bgcolor="#E4EEFF">mixed <b>key</b>(array array)</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="version">Version</a></h2>
<table width="100%" cellpadding=10 height="32">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="20">
<p> PHP 3, PHP 4 &gt;= 4.0b1</p>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="beschreibung">Beschreibung</a></h2>
<table width="100%" cellpadding=10 height="180">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
<p>Die Funktion key() liefert den Schl&uuml;ssel des aktuellen Elements
innerhalb des<br>
Arrays array.<br>
Ist das Array kein Assoziativarray, wird die ID des aktuellen Elements<br>
zur&uuml;ckgegeben (0,1,2,3,4,.....,n ).<br>
</p>
<p>Siehe auch:</p>
<ul>
<li><a href="current.html">current()</a></li>
<li><a href="next.html">next()</a></li>
</ul>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="beispiel1">Beispiel1</a></h2>
<table width="100%" cellpadding=10 height="62">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF">
<pre>&lt;?PHP<br>$array =array(&quot;Script1&quot;=&gt;&quot;PHP&quot;,&quot;Script2&quot;=&gt;&quot;ASP&quot;); <br>for($x=0;$x&lt;sizeof($array);$x++) { <br> echo key($array).&quot; : &quot;.current($array).&quot;&lt;br&gt;&quot;; <br> next($array);<br>}<br>?&gt;</pre>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="ausgabe1">Ausgabe1</a></h2>
<table width="100%" cellpadding=10 height="42">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
<p>Script1 : PHP<br>
Script2 : ASP</p>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="beispiel2">Beispiel2</a></h2>
<table width="100%" cellpadding=10 height="62">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF">
<pre>&lt;?PHP<br>$array =array(&quot;PHP&quot;,&quot;ASP&quot;,&quot;Perl&quot;); <br>for($x=0;$x&lt;sizeof($array);$x++) {<br> echo key($array).&quot; : &quot;.current($array).&quot;&lt;br&gt;&quot;; <br> next($array);<br>}<br>?&gt;</pre>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="ausgabe2">Ausgabe2</a></h2>
<table width="100%" cellpadding=10 height="42">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
<p>0 : PHP<br>
1 : ASP<br>
2 : Perl</p>
</td>
</tr></table>
<p>&nbsp;</p>
<table cellpadding="4" cellspacing="0" border="0" width="100%">
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a>
</td></tr>
<tr>
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">weiter:<a href="krsort.html"><img src="../../src/next.gif" width="10" height="10" border="0" hspace="10" alt="weiter"></a></td>
<td bgcolor="#FFFFFF"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
<a href="krsort.html"><b>krsort</b></a> </td>
</tr>
<tr>
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">zur&uuml;ck:<a href="in_array.html"><img src="../../src/prev.gif" width="10" height="10" border="0" hspace="10" alt="zur&uuml;ck"></a></td>
<td bgcolor="#FFFFFF" width="100%"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
<a href="in_array.html"><b>in_array</b></a> </td>
</tr>
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">&#160;</td></tr>
</table><table cellpadding="4" cellspacing="0" border="0" width="100%">
<tr>
<td bgcolor="#FFEEDD" class="nav"><a class="an" name="bottom"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a>
<a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
<a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
<a href="index.html"><b>Array-Funktionen</b></a></td>
</tr>
</table>
<p><a class="an" name="bottom">&copy; 2001, 2002, 2003</A> <img src="../../src/mail.gif" width="15" height="10" border="0" alt="E-Mail">&nbsp;<a href="mailto:mail@selfphp.info">Damir Enseleit, mail@selfphp.info</a></p>
</body>
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