PHP嘗試從具有正則表達式的表格單元格中獲取字符串
[英]PHP Trying to get string from a table cell with regular expressions
問題描述
我有以下網站，我希望使用正則表達式來獲取以下標記之間的文本
<td colspan="2" align="left" valign="top" bgcolor="#FBFAF4"> ..... </td>
我正在嘗試使用以下內容，但它會返回$ matches的空數組。
preg_match_all("/<td(.*) bgcolor=\"#FBFAF4\"\>(.*)\<\/td>/",$old_filecontents,$matches);
這是正確的模式？
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Ôï <strong>Abaca</strong> åßíáé Ýíá öõóéêü õëéêü ðéï <strong>áíèåêôéêü</strong> êáé ðéï üìïñöï áðü ôï Rattan. <br> Ðáñáäßäåôáé ìå <strong>îýëéíï êïñìü åìðïôéóìïý</strong> Ö8åê.<br> <br> </p> <table width="680" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="340" height="150" valign="middle"> <div align="left"><img src="images/Manufactures/Umbrelas/Abaca/AbacaUmbrela.jpg" width="328" height="500"></div></td> <td width="340" height="150" valign="bottom" class="body"> <table width="340" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="170" height="130"> <div align="center"><img src="images/Manufactures/Umbrelas/Abaca/1_Abaca02_s.jpg" width="152" height="101" class="PopBoxImageSmall" onclick="Pop (this,50,'PopBoxImageLarge');" title="ÌåãÝèõíóç" pbsrc="images/Manufactures/Umbrelas/Abaca/1_Abaca02.jpg" pbCaption="Abaca - ÏìðñÝëá ðáñáëßáò" popBoxCaptionBelow="true" /></div></td> <td width="170" height="130"> <div align="center"><img src="images/Manufactures/Umbrelas/Abaca/2_Abaca03_s.jpg" width="150" height="112" class="PopBoxImageSmall" onclick="Pop (this,50,'PopBoxImageLarge');" title="ÌåãÝèõíóç" pbsrc="images/Manufactures/Umbrelas/Abaca/2_Abaca03.jpg" pbCaption="Abaca - ÏìðñÝëá ðáñáëßáò" popBoxCaptionBelow="true" /></div></td> </tr> <tr> <td width="170" height="130"> <div align="center"><img src="images/Manufactures/Umbrelas/Abaca/3_Abaca01_s.jpg" width="150" height="112" class="PopBoxImageSmall" onclick="Pop (this,50,'PopBoxImageLarge');" title="ÌåãÝèõíóç" pbsrc="images/Manufactures/Umbrelas/Abaca/3_Abaca01.jpg" pbCaption="Abaca - ÏìðñÝëá ðáñáëßáò" popBoxCaptionBelow="true" /></div></td> <td width="170" height="130"> <div align="center"></div></td> </tr> <tr> <td width="170" height="130"> <div align="center"></div></td> <td width="170" height="130"> <div align="center"></div></td> </tr> <tr> <td width="170" height="130"> <div align="center"></div></td> <td width="170" height="130"> <div align="center"></div></td> </tr> </table></td> </tr> <tr> <td width="340" height="50" valign="top"> <p align="center"> </p></td> <td width="340" height="50" valign="top"> <div align="center" class="perigrafes">ÊëéêÜñåôáé ðÜíù óôéò öùôïãñáößåò ãéá ìåãÝèõíóç</div></td> </tr> <tr> <td width="340" valign="bottom"> <div align="center"> </div></td> <td width="340" valign="bottom"> <p align="center"> </p></td> </tr> <tr> <td width="340" valign="top"> <div align="center"></div></td> <td width="340" valign="top"> <p align="center"> </p></td> </tr> <tr> <td height="20" colspan="2" valign="top"> </td> </tr> </table></td> </tr> </table> <font color="#FFFFFF"></font></div></td> <td width="24" height="420"> </td> </tr> <tr> <td width="24"> </td> <td width="200"> </td> <td width="600"> </td> <td width="100"> </td> <td width="24"> </td> </tr> </table></td> </tr> <tr> <td height="22"><table width="900" border="0" align="center" cellpadding="0" cellspacing="0" bgcolor="#007F3E"> <tr> <td height="25"> <div align="center" class="styles">All rights reserved ® Designed by CONTINENTAL ADVERTISING </div></td> </tr> </table></td> </tr> </table> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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1 個解決方案
解決方案1
2 已采納 2011-03-09 15:11:57
鑒於您所談論的單元格包含HTML，實際上是另一個表格，您無法進行傳統的終止檢查...或者您將獲得單元格開頭和您找到的第一個</td>之間的內容。 加'。' 不是多行友好的，所以除非您的單元格打開並終止於同一行，否則您將無法獲得匹配。
我會說不要使用正則表達式 。 嘗試使用XML解析器。
如果您只是獲得純文本，那就沒問題，但是因為您要返回包含終結符的HTML，您需要使用具有某種DOM深度感知功能的解析器......或者找到一個計算正則表達式中的終結符的方法。
PHP：使用正則表達式獲取字符串的最后一個標記
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