简单范例
<span class="pun"><?</span><span class="pln">php</span><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 0px; padding-bottom: 0px; "><span class="pln">include </span><span class="str">"simple_html_dom.php"</span><span class="pln"> </span><span class="pun">;</span>
<span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Create DOM from URL or file</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">$html </span><span class="pun">= </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">file_get_html</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'http://www.google.com/'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">);</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Find all images </span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="kwd">foreach</span><span class="pun">(</span><span class="pln">$html</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'img'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)</span><span class="pln"> </span><span class="kwd">as</span><span class="pln"> $element</span><span class="pun">) </span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> echo $element</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">src</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> </span><span class="pun">. </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'<br>'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Find all links </span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="kwd">foreach</span><span class="pun">(</span><span class="pln">$html</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'a'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)</span><span class="pln"> </span><span class="kwd">as</span><span class="pln"> $element</span><span class="pun">) </span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> echo $element</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">href</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> </span><span class="pun">. </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'<br>'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span>
</p>
<p style="margin-top: 0px; margin-bottom: 0px; padding-top: 0px; padding-bottom: 0px; ">
<span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Create DOM from URL</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">$html </span><span class="pun">= </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">file_get_html</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'http://slashdot.org/'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">);</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Find all article blocks</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="kwd">foreach</span><span class="pun">(</span><span class="pln">$html</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div.article'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)</span><span class="pln"> </span><span class="kwd">as</span><span class="pln"> $article</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> $item</span><span class="pun">[</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'title'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">] =</span><span class="pln"> $article</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div.title'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">, </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="lit">0</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">plaintext</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> $item</span><span class="pun">[</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'intro'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">] =</span><span class="pln"> $article</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div.intro'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">, </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="lit">0</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">plaintext</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> $item</span><span class="pun">[</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'details'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">] =</span><span class="pln"> $article</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div.details'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">, </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="lit">0</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">plaintext</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> $articles</span><span class="pun">[]</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> $item</span><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">}</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">print_r</span><span class="pun">(</span><span class="pln">$articles</span><span class="pun">);</span></span>
</p>
<p style="margin-top: 0px; margin-bottom: 0px; padding-top: 0px; padding-bottom: 0px; ">
<span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Create DOM from string</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">$html </span><span class="pun">= </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">str_get_html</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'<div id="hello">Hello</div><div id="world">World</div>'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">);</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "> </span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">$html</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div'</span><span class="pun">,</span><span class="pln"> </span><span class="lit">1</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="kwd">class</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> = </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'bar'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">$html</span><span class="pun">-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">find</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">(</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'div[id=hello]'</span><span class="pun">,</span><span class="pln"> </span><span class="lit">0</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">)-></span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">innertext</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln"> = </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(119, 0, 0); font-size: 12px; "><span class="str">'foo'</span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pun">;</span></span><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><br style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "></br><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(0, 33, 102); font-size: 12px; "><span class="pln">echo $html</span><span class="pun">; </span></span><span style="line-height: 14px; background-color: rgb(246, 246, 246); font-family: Monaco, Verdana, sans-serif; white-space: normal; color: rgb(136, 136, 136); font-size: 12px; "><span class="com">// Output: <div id="hello"></span><strong><span class="com">foo</span></strong><span class="com"></div><div id="world" </span><strong><span class="com">class="bar"</span></strong><span class="com">>World</div></span></span>
</p>
3.DOM的方法
$html = file_get_html(‘http://www.google.com/’); //$html 所拥有的方法如下表所示
$html->clear() ; //调用方法
DOM methods & properties
| void __construct ( [string $filename] ) | Constructor, set the filename parameter will automatically load the contents, either text or file/url. |
| string plaintext | Returns the contents extracted from HTML. |
| void clear () | Clean up memory. |
| void load ( string $content ) | Load contents from a **string**. |
| string save ( [string $filename] ) | Dumps the internal DOM tree back into a **string**. If the $filename is set, result string will save to file. |
| void load_file ( string $filename ) | Load contents from a from a file or a URL. |
| void set_callback ( string $function_name ) | Set a callback function. |
| mixed find ( string $selector [, int $index] ) | Find elements by the CSS selector. Returns the Nth element **object** if **index** is set, otherwise return an **array** of object. |
4.find 方法详细介绍
**find ( string $selector [, int $index] ) **
// Find all anchors, returns a array of element objects
$ret = $html->find(‘a’);
// Find (N)th anchor, returns element object or null if not found (zero based)
$ret = $html->find(‘a’, 0);
// Find lastest anchor, returns element object or null if not found (zero based)
$ret = $html->find(‘a’, -1);
// Find all <div> with the id attribute
$ret = $html->find(‘div[id]’);
// Find all <div> which attribute id=foo
$ret = $html->find(‘div[id=foo]’);
// Find all element which id=foo
$ret = $html->find(‘#foo’);
// Find all element which class=foo
$ret = $html->find(‘.foo’);
// Find all element has attribute** id**
$ret = $html->find(‘*[id]’);
// Find all anchors and images
$ret = $html->find(‘a, img’);
// Find all anchors and images with the “title” attribute
$ret = $html->find(‘a[title], img[title]’);
// Find all <li> in <ul>
$es = $html->find(‘ul li’);
// Find Nested <div> tags
$es = $html->find(‘div div div’);
// Find all <td> in <table> which class=hello
$es = $html->find(‘table.hello td’);
// Find all td tags with attribite align=center in table tags
$es = $html->find(‘‘table td[align=center]’);
- Element 的方法
$e = $html->find(“div”, 0); //$e 所拥有的方法如下表所示
| $e->tag | Read or write the tag name of element. |
| $e->outertext | Read or write the outer HTML text of element. |
| $e->innertext | Read or write the inner HTML text of element. |
| $e->plaintext | Read or write the plain text of element. |
// Example
$html = str_get_html(“<div>foo bar</div>”);
$e = $html->find(“div”, 0);
echo $e->tag; // Returns: “ div”
echo $e->outertext; // Returns: “ <div>foo bar</div>”
echo $e->innertext; // Returns: “ foo bar”
echo $e->plaintext; // Returns: “ foo bar”
6.DOM traversing 方法
| mixed $e->**children** ( [int $index] ) | Returns the Nth **child object** if **index** is set, otherwise return an **array of children**. |
| element $e->**parent** () | Returns the **parent** of element. |
| element $e->**first_child** () | Returns the **first child** of element, or **null** if not found. |
| element $e->**last_child** () | Returns the **last child** of element, or **null** if not found. |
| element $e->**next_sibling** () | Returns the **next sibling** of element, or** null** if not found. |
| element $e->**prev_sibling** () | Returns the **previous sibling** of element, or **null** if not found. |
// Example
echo $html->find(“#div1”, 0)->children(1)->children(1)->children(2)->id;
// or
echo $html->getElementById(“div1”)->childNodes(1)->childNodes(1)->childNodes(2)->getAttribute(‘id’);
附带： DOM方法 set_callback(‘my_callback’) 使用方法
// Write a function with parameter “$element”
function my_callback($element) {
// Hide all tags
if ($element->tag==’b’)
$element->outertext = ‘’;
}
// Register the callback function with it’s function name
$html->set_callback(‘my_callback’);
// Callback function will be invoked while dumping
echo $html;
