blocks|key|263208|text|您可以使用PHP完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|263209|header("Refresh:0");|code-block|syntax|javascript|263210|它会刷新当前页面，如果您需要将其重定向到另一个页面，请使用以下命令：|263211|header("Refresh:0;+url=page2.php");|263212|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can do it with PHP:

<pre><code>header("Refresh:0");
</code></pre>

It refreshes your current page, and if you need to redirect it to another page, use following:

<pre><code>header("Refresh:0; url=page2.php");
</code></pre>

blocks|key|479557|text|在PHP中，您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|479558|$page+=+$_SERVER['PHP_SELF'];
$sec+=+"10";
header("Refresh:+$sec;+url=$page");|code-block|syntax|javascript|479559|或者直接使用JavaScript的window.location.reload()。|style|CODE|479560|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/PHP^0|1|3|0|0|0|H|O|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@$A|10|B|11|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

In <a href="http://en.wikipedia.org/wiki/PHP" rel="noreferrer">PHP</a> you can use:

<pre><code>$page = $_SERVER['PHP_SELF'];
$sec = "10";
header("Refresh: $sec; url=$page");
</code></pre>

Or just use JavaScript's <code>window.location.reload()</code>.

blocks|key|263155|text|您肯定可以使用PHP定期刷新页面：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|263156|<?php
++++header("refresh:+3;");
?>|code-block|syntax|javascript|263157|这将每三秒刷新一次页面。|263158|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You sure can refresh a page periodically using PHP:

<pre><code>&lt;?php
 header("refresh: 3;");
?&gt;
</code></pre>

This will refresh the page every three seconds.

blocks|key|479814|text|使用PHP中的header()可以做到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|479815|header('Refresh:+1;+url=index.php');|code-block|syntax|javascript|479816|entityMap|0|LINK|mutability|MUTABLE|url|https://php.net/manual/en/function.header.php^0|7|8|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

That is simply possible with <a href="https://php.net/manual/en/function.header.php" rel="nofollow noreferrer">header()</a> in PHP:

<pre><code>header('Refresh: 1; url=index.php');
</code></pre>

blocks|key|480326|text|header('Location:+.');似乎刷新了Chrome、Firefox、Edge和in浏览器11中的页面。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|480327|entityMap^0|0|M|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

<code>header('Location: .');</code> seems to refresh the page in Chrome, Firefox, Edge, and Internet&nbsp;Explorer&nbsp;11.

blocks|key|263281|text|回显meta标记，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|263282|URL是页面在刷新后应重定向到的URL。|263283|echo+"<meta+http-equiv=\"refresh\"+content=\"0;URL=upload.php\">";|code-block|syntax|javascript|263284|entityMap^0|2|4|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Echo the <code>meta</code> tag like this:

URL is the one where the page should be redirected to after the refresh.

<pre><code>echo "&lt;meta http-equiv=\"refresh\" content=\"0;URL=upload.php\"&gt;";
</code></pre>

blocks|key|263091|text|您可以使用JavaScript刷新。您可以在div中提供要刷新的内容，而不是完整的页面刷新。然后，通过使用JavaScript，您可以只刷新特定的div，并且它的工作速度比整个页面刷新更快。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|263092|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can refresh using JavaScript. Rather than the complete page refresh, you can give the contents to be refreshed in a div. Then by using JavaScript you can refresh that particular div only, and it works faster than the complete page refresh.

blocks|key|479922|text|在PHP中添加此meta标记可能会有所帮助：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|479923|echo+'<META+HTTP-EQUIV="Refresh"+Content="0;+URL='+.+$location+.+'">';|code-block|syntax|javascript|479924|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Adding this meta tag in PHP might help:

<pre><code>echo '&lt;META HTTP-EQUIV="Refresh" Content="0; URL=' . $location . '"&gt;';
</code></pre>

blocks|key|263491|text|一个技巧是在URL的末尾添加一个随机数。这样你就不必每次都重命名文件了。例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|263492|echo+"<img+src='temp.jpg?r=3892384947438'>"|code-block|syntax|javascript|263493|只要随机数不同，浏览器就不会缓存它，但web服务器会忽略它。|263494|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

One trick is to add a random number to the end of the URL. That way you don't have to rename the file every time. E.g.:

<pre><code>echo "&lt;img src='temp.jpg?r=3892384947438'&gt;"
</code></pre>

The browser will not cache it as long as the random number is different, but the web server will ignore it.

blocks|key|263564|text|将以下函数添加到项目中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|263565|function+redirect($filename)+{
++++if+(!headers_sent())
++++++++header('Location:+'.$filename);
++++else+{
++++++++echo+'<script+type="text/javascript">';
++++++++echo+'window.location.href+=+\''.$filename.'\';';
++++++++echo+'</script>';
++++++++echo+'<noscript>';
++++++++echo+'<meta+http-equiv="refresh"+content="0;url=\''.$filename.'\'"+/>';
++++++++echo+'</noscript>';
++++}
++++exit();
}|code-block|syntax|javascript|263566|函数调用：|263567|redirect($_SERVER['REQUEST_URI']);|263568|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Add the following function to your project:
<pre><code>function redirect($filename) {
 if (!headers_sent())
 header('Location: '.$filename);
 else {
 echo '&lt;script type=&quot;text/javascript&quot;&gt;';
 echo 'window.location.href = \''.$filename.'\';';
 echo '&lt;/script&gt;';
 echo '&lt;noscript&gt;';
 echo '&lt;meta http-equiv=&quot;refresh&quot; content=&quot;0;url=\''.$filename.'\'&quot; /&gt;';
 echo '&lt;/noscript&gt;';
 }
 exit();
}
</code></pre>
function call:
<pre><code>redirect($_SERVER['REQUEST_URI']);
</code></pre>

How can I refresh a page using PHP periodically? If I can not do it by PHP, what is the best recommended scenario?

Refresh a page using PHP

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如何使用PHP定期刷新页面？如果我不能用PHP做这件事，最好的推荐方案是什么？

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