我一直在使用以下代码来获取网页的 html 内容
$url = "http://mysmallwebpage.com/";
$html = file_get_contents($url);
但是，file_get_contents无法打开以下形式的 URL，但是如果我在 Web 浏览器的地址栏中键入它们，这些 URL 可以正常打开。
www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school
blog.al.com/birmingham-news-commentary/2012/11/naked_art_gallery_gives_back_t.html
mysmallwebpage.com/
你能告诉我我可以用什么在php中打开上面的URL吗？
跟随不起作用
$url = "www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school";
$html = file_get_contents($url);
除非您不使用http://PHP 前缀，否则不会知道您想要一个网页并尝试使用文件系统：
$url = "http://www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school";
$html = file_get_contents($url);
if (FALSE === $html) {
throw new Exception(sprintf('Failed to open HTTP URL "%s".', $url));
}
在开发中，启用所有错误、警告和通知。PHP 通常会告诉您这些问题当时以及它们出现的位置。
完整示例（演示）：
<?php
/**
* PHP file_get_contents can't get html code
* @link http://stackoverflow.com/q/16118385/367456
*/
header('Content-Type: text/plain');
$url = "http://www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school";
$html = file_get_contents($url);
if (FALSE === $html) {
throw new Exception(sprintf('Failed to open HTTP URL "%s".', $url));
}
$xml = simplexml_import_dom(@DOMDocument::loadHTML($html), 'SimpleXMLIterator');
$tree = new RecursiveTreeIterator($xml);
foreach($tree as $element => $line) {
printf("%s <%s>\n", $tree->getPrefix(), $element);
}
输出：
|- <head>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <title>
| |- <meta>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <link>
| |- <script>
| |- <script>
| |- <script>
| |- <script>
| |- <script>
| |- <script>
| |- <link>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| |- <meta>
| \- <link>
\- <body>
|- <div>
|- <noscript>
| \- <div>
| \- <p>
| \- <a>
|- <script>
|- <div>
| |- <div>
| | |- <ul>
| | | |- <li>
| | | | \- <a>
| | | |- <li>
| | | | |- <a>
| | | | \- <span>
| | | |- <li>
| | | | |- <a>
| | | | \- <div>
| | | | |- <div>
| | | | | \- <div>
| | | | | \- <ul>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | \- <li>
| | | | | \- <a>
| | | | \- <span>
| | | |- <li>
| | | | |- <a>
| | | | \- <div>
| | | | |- <div>
| | | | | \- <div>
| | | | | \- <ul>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | \- <li>
| | | | | \- <a>
| | | | \- <span>
| | | |- <li>
| | | | \- <a>
| | | |- <li>
| | | | \- <a>
| | | \- <li>
| | | \- <a>
| | \- <ul>
| | \- <li>
| | \- <a>
| \- <div>
| |- <h1>
| | \- <a>
| |- <ul>
| | |- <li>
| | | \- <a>
| | \- <li>
| | \- <a>
| |- <input>
| |- <input>
| |- <input>
| |- <input>
| |- <input>
| |- <form>
| | |- <div>
| | | |- <input>
| | | |- <button>
| | | \- <div>
| | | \- <ul>
| | |- <input>
| | \- <input>
| \- <div>
| \- <a>
| \- <span>
|- <div>
| \- <div>
| |- <a>
| | \- <span>
| |- <ul>
| | |- <li>
| | | \- <a>
| | \- <li>
| | \- <a>
| \- <div>
| |- <div>
| | |- <div>
| | | \- <p>
| | |- <div>
| | \- <form>
| | |- <div>
| | | \- <h2>
| | |- <div>
| | | |- <div>
| | | | |- <a>
| | | | | \- <span>
| | | | \- <div>
| | | |- <input>
| | | |- <input>
| | | |- <input>
| | | |- <input>
| | | \- <p>
| | |- <div>
| | | \- <span>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | |- <span>
| | | \- <input>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | \- <input>
| | |- <div>
| | | |- <input>
| | | |- <label>
| | | |- <input>
| | | |- <label>
| | | |- <input>
| | | \- <label>
| | |- <hr>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | | |- <span>
| | | | \- <span>
| | | |- <span>
| | | \- <input>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | \- <input>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | \- <input>
| | |- <div>
| | | |- <label>
| | | |- <span>
| | | |- <input>
| | | |- <div>
| | | | |- <span>
| | | | \- <span>
| | | \- <div>
| | | |- <span>
| | | \- <span>
| | |- <hr>
| | |- <p>
| | | |- <a>
| | | \- <a>
| | |- <p>
| | | |- <input>
| | | |- <input>
| | | |- <input>
| | | |- <span>
| | | | \- <span>
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| | | \- <span>
| | \- <div>
| | |- <input>
| | \- <label>
| \- <div>
| |- <div>
| | \- <p>
| \- <form>
| |- <div>
| | |- <label>
| | |- <input>
| | \- <span>
| |- <div>
| | |- <label>
| | |- <input>
| | \- <span>
| |- <div>
| | |- <input>
| | \- <label>
| |- <p>
| | |- <input>
| | |- <input>
| | |- <input>
| | |- <span>
| | | \- <span>
| | | \- <input>
| | \- <span>
| |- <hr>
| |- <p>
| | \- <a>
| \- <p>
| \- <a>
|- <div>
| \- <div>
| \- <div>
|- <script>
|- <script>
|- <div>
| \- <div>
| \- <p>
| |- <strong>
| |- <strong>
| \- <strong>
|- <div>
| |- <ul>
| | |- <li>
| | | |- <a>
| | | \- <span>
| | \- <li>
| | \- <a>
| \- <div>
| \- <div>
| |- <div>
| | |- <div>
| | | |- <div>
| | | | |- <input>
| | | | |- <div>
| | | | | \- <a>
| | | | | \- <span>
| | | | \- <div>
| | | | |- <h3>
| | | | \- <p>
| | | |- <div>
| | | | |- <h1>
| | | | \- <p>
| | | | \- <a>
| | | |- <div>
| | | | |- <div>
| | | | | \- <a>
| | | | | \- <img>
| | | | \- <div>
| | | | \- <a>
| | | |- <div>
| | | | |- <a>
| | | | | \- <img>
| | | | |- <a>
| | | | | \- <img>
| | | | |- <a>
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| | | | |- <a>
| | | | | \- <img>
| | | | \- <a>
| | | | \- <img>
| | | |- <div>
| | | | \- <div>
| | | | |- <br>
| | | | \- <p>
| | | | |- <br>
| | | | \- <a>
| | | |- <div>
| | | | |- <h3>
| | | | | \- <span>
| | | | |- <h4>
| | | | \- <table>
| | | | |- <tr>
| | | | | |- <th>
| | | | | |- <th>
| | | | | \- <th>
| | | | |- <tr>
| | | | | |- <td>
| | | | | |- <td>
| | | | | | |- <span>
| | | | | | |- <span>
| | | | | | \- <span>
| | | | | \- <td>
| | | | | |- <span>
| | | | | |- <span>
| | | | | \- <span>
| | | | \- <tr>
| | | | |- <td>
| | | | |- <td>
| | | | | |- <span>
| | | | | |- <span>
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| | | | \- <td>
| | | | |- <span>
| | | | |- <span>
| | | | \- <span>
| | | |- <div>
| | | | |- <div>
| | | | | |- <h3>
| | | | | \- <ul>
| | | | | |- <div>
| | | | | | |- <p>
| | | | | | | \- <span>
| | | | | | \- <span>
| | | | | |- <li>
| | | | | | \- <span>
| | | | | \- <li>
| | | | | \- <span>
| | | | \- <div>
| | | | |- <h3>
| | | | \- <ul>
| | | | |- <li>
| | | | | \- <a>
| | | | \- <li>
| | | | \- <a>
| | | |- <div>
| | | | |- <ul>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | | \- <strong>
| | | | | | |- <span>
| | | | | | \- <span>
| | | | | \- <li>
| | | | | |- <div>
| | | | | | \- <a>
| | | | | \- <div>
| | | | \- <div>
| | | | |- <div>
| | | | | |- <div>
| | | | | | |- <h3>
| | | | | | |- <p>
| | | | | | |- <h3>
| | | | | | \- <p>
| | | | | \- <div>
| | | | | |- <h3>
| | | | | \- <p>
| | | | |- <div>
| | | | | \- <div>
| | | | | |- <h3>
| | | | | \- <div>
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| | | | | |- <a>
| | | | | \- <a>
| | | | \- <div>
| | | | \- <ul>
| | | | |- <li>
| | | | \- <li>
| | | |- <div>
| | | | |- <h3>
| | | | \- <div>
| | | | \- <ul>
| | | \- <script>
| | |- <div>
| | | |- <div>
| | | | |- <div>
| | | | | |- <div>
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| | | | | | |- <span>
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| | | | | | | \- <span>
| | | | | | \- <span>
| | | | | \- <div>
| | | | \- <div>
| | | | |- <div>
| | | | |- <div>
| | | | | \- <div>
| | | | | \- <div>
| | | | \- <div>
| | | | |- <div>
| | | | | \- <form>
| | | | | |- <input>
| | | | | |- <input>
| | | | | |- <input>
| | | | | |- <input>
| | | | | |- <input>
| | | | | \- <span>
| | | | | \- <span>
| | | | | \- <input>
| | | | \- <div>
| | | | \- <div>
| | | | |- <input>
| | | | |- <input>
| | | | |- <input>
| | | | \- <a>
| | | | \- <span>
| | | |- <div>
| | | | \- <p>
| | | | |- <span>
| | | | \- <span>
| | | | \- <span>
| | | |- <script>
| | | |- <div>
| | | | |- <div>
| | | | | |- <h2>
| | | | | |- <ul>
| | | | | | |- <li>
| | | | | | | \- <span>
| | | | | | | \- <a>
| | | | | | \- <li>
| | | | | |- <div>
| | | | | | \- <div>
| | | | | | |- <span>
| | | | | | |- <div>
| | | | | | | \- <a>
| | | | | | | \- <img>
| | | | | | |- <div>
| | | | | | | \- <a>
| | | | | | | \- <img>
| | | | | | \- <div>
| | | | | | \- <a>
| | | | | | \- <span>
| | | | | \- <ul>
| | | | | |- <li>
| | | | | | |- <input>
| | | | | | \- <a>
| | | | | | \- <span>
| | | | | \- <li>
| | | | | \- <a>
| | | | | \- <span>
| | | | |- <div>
| | | | | |- <h2>
| | | | | \- <div>
| | | | | |- <div>
| | | | | | \- <a>
| | | | | | \- <img>
| | | | | \- <ul>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | \- <li>
| | | | | \- <a>
| | | | | \- <span>
| | | | \- <div>
| | | | |- <h2>
| | | | |- <ul>
| | | | | |- <li>
| | | | | | |- <input>
| | | | | | \- <a>
| | | | | | |- <span>
| | | | | | \- <span>
| | | | | |- <li>
| | | | | | \- <a>
| | | | | | \- <span>
| | | | | \- <li>
| | | | | \- <a>
| | | | | |- <span>
| | | | | \- <span>
| | | | |- <hr>
| | | | |- <ul>
| | | | | |- <li>
| | | | | | |- <script>
| | | | | | \- <a>
| | | | | | |- <span>
| | | | | | \- <span>
| | | | | |- <li>
| | | | | | |- <script>
| | | | | | \- <a>
| | | | | \- <li>
| | | | | |- <like>
| | | | | \- <script>
| | | | |- <hr>
| | | | \- <div>
| | | | \- <ul>
| | | | |- <li>
| | | | \- <li>
| | | | \- <a>
| | | \- <div>
| | | |- <div>
| | | | |- <div>
| | | | |- <div>
| | | | | |- <span>
| | | | | |- <span>
| | | | | |- <a>
| | | | | | \- <span>
| | | | | \- <span>
| | | | \- <div>
| | | \- <div>
| | | |- <div>
| | | |- <div>
| | | | \- <div>
| | | | \- <div>
| | | \- <div>
| | | |- <div>
| | | | \- <form>
| | | | |- <input>
| | | | |- <input>
| | | | |- <input>
| | | | |- <input>
| | | | |- <input>
| | | | \- <span>
| | | | \- <span>
| | | | \- <input>
| | | \- <div>
| | | \- <div>
| | | |- <input>
| | | |- <input>
| | | |- <input>
| | | \- <a>
| | | \- <span>
| | |- <script>
| | |- <div>
| | | \- <div>
| | | |- <span>
| | | \- <a>
| | | \- <span>
| | \- <script>
| |- <div>
| \- <div>
| |- <div>
| | |- <div>
| | | |- <h2>
| | | \- <a>
| | | \- <span>
| | \- <form>
| | |- <div>
| | | |- <div>
| | | |- <div>
| | | |- <input>
| | | |- <div>
| | | |- <div>
| | | | |- <label>
| | | | \- <select>
| | | | |- <option>
| | | | |- <optgroup>
| | | | \- <optgroup>
| | | \- <div>
| | | |- <label>
| | | \- <input>
| | \- <div>
| | |- <button>
| | \- <div>
| | \- <span>
| \- <div>
| \- <div>
| |- <a>
| | \- <span>
| |- <h2>
| \- <a>
|- <div>
|- <div>
| |- <p>
| |- <ul>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | |- <li>
| | | \- <a>
| | \- <li>
| | \- <a>
| |- <p>
| | |- <a>
| | | \- <span>
| | |- <a>
| | | \- <span>
| | |- <a>
| | \- <span>
| \- <script>
|- <script>
|- <script>
|- <div>
| \- <div>
| |- <div>
| | \- <h2>
| \- <div>
| \- <div>
| \- <a>
| \- <span>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <noscript>
| \- <iframe>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
|- <script>
\- <script>
http://之前使用"www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school"
$url = " http://www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school "; $html = file_get_contents($url); 使用它正在工作的这个网址。
你在 url 中使用 http。
试试这个它工作正常
$url = "http://www.etsy.com/listing/118415624/not-my-small-diary-17-true-high-school";
$html = file_get_contents($url);
echo "<pre>";
print_r($html);
exit;