在我的html中，string($str)包含span中的链接及其标题/名称。我想提取view.php?id=123,view.php?id=124和它们的名字galaxy和galaxy2。
有人能帮我提取跨度内的链接及其名称吗？我试着跟踪，但没有得到任何数据！提前谢谢。
$str="...............<span class="title" ><a href="view.php?id=123" class="title"><strong>galaxy</strong></a></span>............<span class="title" style=background:#000000><a href="watch.php?id=124" class="title"><strong>galaxy2</strong></a></span>";
if(preg_match_all('/'<span class="title" ><a href=(.*?)'<'/strong>/',$str,$match))
{
echo "<br>href:".$match[1][0];
echo "<br>";
echo "title:"
}
str样本数据：
<div class="profile cleaning" id="contentlist">
<div class="profile-item ">
<div class="img" data-preview="view.php?id=123">
<img src="./logos/123.jpg" width="240" height="140" alt="">
</div>
<span class="title" style=background:#000000><a href="view.php?id=123" class="title"><strong>Galaxy 1</strong></a></span>
</div><div class="profile-item ">
<div class="img" data-preview="view.php?id=124">
<img src="./logos/124.jpg" width="240" height="140" alt="">
</div>
<span class="title" style=background:#000000><a href="view.php?id=124" class="title"><strong>Galaxy 2</strong></a></span>
</div><div class="profile-item ">
<div class="img" data-preview="view.php?id=125">
<img src="./logos/125.png" width="240" height="140" alt="">
</div>
<span class="title" style=background:#000000><a href="view.php?id=125" class="title"><strong>Galaxy 3</strong></a></span>
</div><div class="profile-item " style="background:#000000;border:1px solid #326EE0;">
<div class="img" data-preview="view.php?id=126">
<div style="position: relative; left: 0; top: 0;vertical-align:top">
<img src="./logos/126.png" style="border: none;padding:1px;border:2px solid #326EE0;margin:0px;margin-bottom:2px;width:240px;position: relative; top: 0; left: 0; " >
<img src="images/mango.png" style="width:240px;position: absolute; top: 0px; left: 0px;"/>
</div>
</div>
<span class="title" ><a href="view.php?id=126" class="title"><strong>Galaxy 4</strong></a></span>
</div><div class="profile-item " style="background:#000000;border:1px solid #326EE0;">
<div class="img" data-preview="view.php?id=127">
<div style="position: relative; left: 0; top: 0;vertical-align:top">
<img src="./logos/127.jpg" style="border: none;padding:1px;border:2px solid #326EE0;margin:0px;margin-bottom:2px;width:240px;position: relative; top: 0; left: 0; " >
<img src="images/mango.png" style="width:240px;position: absolute; top: 0px; left: 0px;"/>
</div>
</div>
<span class="title" ><a href="view.php?id=127" class="title"><strong>Galaxy 5</strong></a></span>
</div><div class="profile-item " style="background:#000000;border:1px solid #326EE0;">
<div class="img" data-preview="view.php?id=128">
<div style="position: relative; left: 0; top: 0;vertical-align:top">
<img src="./logos/128.jpg" style="border: none;padding:1px;border:2px solid #326EE0;margin:0px;margin-bottom:2px;width:240px;position: relative; top: 0; left: 0; " >
<img src="images/mango.png" style="width:240px;position: absolute; top: 0px; left: 0px;"/>
</div>
</div>
<span class="title" ><a href="view.php?id=128" class="title"><strong>Galaxy 6</strong></a></span>
</div></div>
您可以为此使用函数。
$str='zxcvbnm<a href="http://www.example.com">zxcv</a>qwertyuiop<span class="title" ><a href="view.php?id=123" class="title"><strong>galaxy</strong></a></span>asdfghjkl<span class="title" style=background:#000000><a href="watch.php?id=124" class="title"><strong>galaxy2</strong></a></span>';
function parse_hrefANDname($str) {
if (strpos($str, '<span class="title"') === false) return false;
$line = substr($line, strpos($line, '<a href=')+8);
$res = array();
$str_arr = explode('<a href=', $str);
foreach ($str_arr as $k => $line) {
if ($k == 0) continue;
$href_quote = substr($line, 0, 1); // some writes href="", some href=''
$href_val = substr($line, 1);
$href_val = substr($href_val, 0, strpos($href_val, $href_quote));
$name = substr($line, strpos($line, '<strong>') + 8);
$name = substr($name, 0, strpos($name, '</strong>'));
$res[$k - 1]['href'] = $href_val;
$res[$k - 1]['name'] = $name;
}
return $res;
}
$arr = parse_hrefANDname($str);
print_r($arr);
您可以使用SimpleXML来实现这一点。元素和属性可以通过类似数组的语法访问，最好不要为此使用一些正则表达式：
$str = '<container><span class="title" ><a href="view.php?id=123" class="title"><strong>galaxy</strong></a></span></container>';
$xml = simplexml_load_string($str);
echo $xml->span->a["href"]; // view.php?id=123
echo $xml->span->a->strong; // galaxy
因此，对于您的情况（即具有多个跨度）：
<?php
$str='<container>
<span class="title">
<a href="view.php?id=123" class="title"><strong>galaxy</strong></a>
</span>
<span class="title" style="background:#000000">
<a href="watch.php?id=124" class="title"><strong>galaxy2</strong></a>
</span>
</container>';
$xml = simplexml_load_string($str);
foreach ($xml->span as $span) {
echo "Link: " . $span->a["href"] . "<br/>";
echo "Content: " . $span->a->strong->__toString();
}
?>
提示：我制作了container标签，在您的情况下可能是html或xml。此外，我还必须更正标记（添加双引号）。