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	<title>Das Noyse.net Blog &#187; KOT-Noyse</title>
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		<title>Merke&#8230;(I)</title>
		<link>http://noyse.net/blog/erguesse/2008/09/19/merkei/</link>
		<comments>http://noyse.net/blog/erguesse/2008/09/19/merkei/#comments</comments>
		<pubDate>Fri, 19 Sep 2008 11:41:00 +0000</pubDate>
		<dc:creator>Noyse</dc:creator>
				<category><![CDATA[KOT-Noyse]]></category>
		<category><![CDATA[PHP]]></category>

		<guid isPermaLink="false">http://noyse.net/blog/erguesse/2008/09/19/merkei/</guid>
		<description><![CDATA[Normalerweise definiere ich Attribute einer PHP Klasse private . Allerdings bin ich nun auf einige Hindernisse gestoßen. Nämlich dann wenn man auf Variablen einer geerbten Klasse zugreifen will. 1: private $brei; 2:&#160; 3: public function setBrei(){ 4: $this-&#62;brei='suess'; 5: echo $brei; 6: } 7: } 8:&#160; 9: class bar extends foo{ 10:&#160; 11: public function [...]]]></description>
			<content:encoded><![CDATA[<p>Normalerweise definiere ich Attribute einer PHP Klasse <font face="Courier">private </font><font face="ver">.</font></p>
<p>Allerdings bin ich nun auf einige Hindernisse gestoßen. Nämlich dann wenn man auf Variablen einer geerbten Klasse zugreifen will.</p>
<div><span id="more-152"></span></p>
<div style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px">
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   1:</span> <span style="color: #0000ff">private</span> $brei; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   2:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   3:</span>     <span style="color: #0000ff">public</span> function setBrei(){</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   4:</span>         $<span style="color: #0000ff">this</span>-&gt;brei=<span style="color: #006080">'suess'</span>;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   5:</span>         echo $brei;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   6:</span>     }</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   7:</span> } </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   8:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   9:</span> <span style="color: #0000ff">class</span> bar extends foo{ </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  10:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  11:</span>      <span style="color: #0000ff">public</span> function setGeschmack(){</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  12:</span>         parent::setBrei();</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  13:</span>         $<span style="color: #0000ff">this</span>-&gt;brei=<span style="color: #006080">'salzig'</span>;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  14:</span>         echo $brei;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  15:</span>      }</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  16:</span> }</pre></div>
</div>
<p>Anders als zum Beispiel <a target="_blank" href="http://www.php-resource.de/forum/showthread.php?s=620f55fab4683a7b0109394e6cf846c6&amp;threadid=37012">hier</a> dargestellt, kann man in diesem Fall eben nicht mit <font face="Courier New">$this-&gt;brei</font> auf die <font face="Courier New">parent </font>Variable zugreifen, wenn diese <font face="Courier New">private</font> ist.</p>
<p>Zeile 7 ergibt:</p>
<p><font face="Courier New">suess</font>&#160;</p>
<p>Zeile 16 ergibt</p>
<p><font face="Courier New">suess </font>anstatt <font face="Courier New">salzig</font> wie erwartet!</p>
<p>Nach mehrmaligen Probieren kam ich auf die Lösung, dass es an der <font face="Courier New">private</font> Deklaration liegt. Wenn stattdessen <font face="Courier New">protected </font>genutzt wird, führt das Beispiel zum erwünschten Ergebnis. </p>
</p>
<div>
<div style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px">
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   1:</span> <span style="color: #0000ff">protected</span> $brei;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   2:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   3:</span>     <span style="color: #0000ff">public</span> function setBrei(){</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   4:</span>         $<span style="color: #0000ff">this</span>-&gt;brei=<span style="color: #006080">'suess'</span>;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   5:</span>         echo $brei;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   6:</span>     }</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   7:</span> }</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   8:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">   9:</span> <span style="color: #0000ff">class</span> bar extends foo{</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  10:</span>&#160; </pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  11:</span>      <span style="color: #0000ff">public</span> function setGeschmack(){</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  12:</span>         parent::setBrei();</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  13:</span>         $<span style="color: #0000ff">this</span>-&gt;brei=<span style="color: #006080">'salzig'</span>;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  14:</span>         echo $brei;</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: white; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  15:</span>      }</pre>
<pre style="border-bottom-style: none; padding-bottom: 0px; line-height: 12pt; border-right-style: none; background-color: #f4f4f4; margin: 0em; padding-left: 0px; width: 100%; padding-right: 0px; font-family: consolas, &#39;Courier New&#39;, courier, monospace; border-top-style: none; color: black; font-size: 8pt; border-left-style: none; overflow: visible; padding-top: 0px"><span style="color: #606060">  16:</span> }</pre></div>
</div>
<p>&#160;</p>
</p>
<div style="padding-bottom: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; float: none; padding-top: 0px" id="scid:0767317B-992E-4b12-91E0-4F059A8CECA8:c369e480-c905-4d47-9df8-b7e881930117" class="wlWriterEditableSmartContent">Technorati-Tags: <a href="http://technorati.com/tags/PHP" rel="tag">PHP</a>,<a href="http://technorati.com/tags/Veerbte+Variablen" rel="tag">Veerbte Variablen</a>,<a href="http://technorati.com/tags/Klassen" rel="tag">Klassen</a></div>
<div class="link-summarizer"><h3>Link Summary</h3><ul><li><a target="_blank" href='http://www.php-resource.de/forum/showthread.php?s=620f55fab4683a7b0109394e6cf846c6&amp;threadid=37012'>hier</a></li></ul></div><h3  class="related_post_title">auch im Noyse.net Blog</h3><ul class="related_post"><li><a href="http://noyse.net/blog/erguesse/2008/10/21/eklat-eklat-iii/" title="Eklat, Eklat (III)*">Eklat, Eklat (III)*</a></li><li><a href="http://noyse.net/blog/erguesse/2008/06/13/klassenkasse/" title="KlassenKasse">KlassenKasse</a></li><li><a href="http://noyse.net/blog/erguesse/2010/05/04/mein-gewinnspielpost/" title="Mein Gewinnspielpost">Mein Gewinnspielpost</a></li><li><a href="http://noyse.net/blog/erguesse/2007/06/20/die-waldklinik-tragt-schwarz/" title="Die Waldklinik trägt Schwarz">Die Waldklinik trägt Schwarz</a></li><li><a href="http://noyse.net/blog/erguesse/2007/03/06/lastiges-poppen/" title="Lästiges Poppen">Lästiges Poppen</a></li></ul>]]></content:encoded>
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