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  <span>Method: 
PHPCrawler::addContentTypeReceiveRule()</span>
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 <span><a href="overview.html"><< Back to class-overview</a></span>
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Adds a rule to the list of rules that decides which pages or files - regarding their content-type - should be received
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<b>Signature:</b>
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public addContentTypeReceiveRule($regex)
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<b>Parameters:</b>
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<tr><td id="paramname" width="1%"><b>$regex</b>&nbsp;</td><td width="1%"><i><i>string</i></i>&nbsp;</td><td width="*">The rule as a regular-expression</td></tr>
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<b>Returns:</b>
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<tr> <td width="1%"><i><i>bool</i></i>&nbsp;</td> <td width="*"> TRUE if the rule was added to the list.<br>             FALSE if the given regex is not valid.</td></tr>
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<b>Description:</b>
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After receiving the HTTP-header of a followed URL, the crawler check's - based on the given rules - whether the content of that URL<br>should be received.<br>If no rule matches with the content-type of the document, the content won't be received.<br><br>Example:<code>$crawler-&gt;addContentTypeReceiveRule("#text/html#");<br>$crawler-&gt;addContentTypeReceiveRule("#text/css#");</code><br>This rules lets the crawler receive the content/source of pages with the Content-Type "text/html" AND "text/css".<br>Other pages or files with different content-types (e.g. "image/gif") won't be received (if this is the only rule added to the list).<br><br><b>IMPORTANT:</b> By default, if no rule was added to the list, the crawler receives every content.<br><br>Note: To reduce the traffic the crawler will cause, you only should add content-types of pages/files you really want to receive.<br>But at least you should add the content-type "text/html" to this list, otherwise the crawler can't find any links.
  
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