blocks|key|2987630|text|尝尝这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2987631|if+(isset($_GET['search']))+include('search.php');
else+include('home.php');|code-block|syntax|javascript|2987632|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|$]]

Try this

<pre><code>if (isset($_GET['search'])) include('search.php');
else include('home.php');
</code></pre>

blocks|key|2553762|text|$sq+=+$_GET['search'];+//$_GET['']
if+(isset($sq)+&&+$sq+!=+'')+{
include('search.php');
}+else+{
include('home.php');
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2553763|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$sq = $_GET['search']; //$_GET['']
if (isset($sq) &amp;&amp; $sq != '') {
include('search.php');
} else {
include('home.php');
}
</code></pre>

blocks|key|4627779|text|那么，您可以使用isset()查看是否设置了该变量。例如：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4627780|if(isset($_GET['search'])){
++++include+"search.php";
}
else+{
++++include+"home.php";
}|code-block|syntax|javascript|4627781|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.isset.php^0|8|7|8|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Well, you could use <a href="http://php.net/manual/en/function.isset.php" rel="nofollow"><code>isset()</code></a> to see if the variable is set. e.g.

<pre><code>if(isset($_GET['search'])){
 include "search.php";
}
else {
 include "home.php";
}
</code></pre>

blocks|key|2987639|text|<?php

//if($_GET['search']+>+""){+//+this+will+likely+cause+an+error
if(isset($_GET['search'])+&&+trim($_GET['search'])+>+""){+//+this+is+better
+++include+('search.php');
}else{
+++include+('home.php');
}

?>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2987640|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?php

//if($_GET['search'] &gt; ""){ // this will likely cause an error
if(isset($_GET['search']) &amp;&amp; trim($_GET['search']) &gt; ""){ // this is better
 include ('search.php');
}else{
 include ('home.php');
}

?&gt;
</code></pre>

blocks|key|2987651|text|像这样使用它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2987652|if+(isset($_GET['search']))
++include+'search.php';
else
+include+'home.php';|code-block|syntax|javascript|2987653|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|$]]

use it like this

<pre><code>if (isset($_GET['search']))
 include 'search.php';
else
 include 'home.php';
</code></pre>

blocks|key|4717527|text|我个人更喜欢检查是否设置了$_GET，以及它是否实际上等于以下内容：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4717528|if(isset($_GET['search'])+&&+strlen(trim($_GET['search']))+>+0):+include+'search.php';+
else:+include+'home.php';|code-block|syntax|javascript|4717529|这将避免放入$_GET变量但不实际设置它的问题。|4717530|entityMap^0|D|5|0|0|6|5|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

I personally prefer to check if a <code>$_GET</code> is set and if it actually equals something like so:

<pre><code>if(isset($_GET['search']) &amp;&amp; strlen(trim($_GET['search'])) &gt; 0): include 'search.php'; 
else: include 'home.php';
</code></pre>

This will avoid the problem of putting in the <code>$_GET</code> variable but not actually setting it.

blocks|key|4717633|text|在使用isset()时，您需要注意，对于像这样的空GET变量，isset($_GET['foo'])将返回TRUE|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|4717634|设置了Foo，但没有值。|4717635|因此，如果您想确保GET变量有一个值，那么您可能希望结合使用strlen()和trim()……|4717636|if+(strlen(trim($_GET['search']))+>+0)+{
++++include('search.php');
}+else+{
++++include('home.php');
}|code-block|syntax|javascript|4717637|此外，您可能希望使用require()而不是include()。如果search.php不能是“必需的”，则会生成一个致命错误，如果search.php不能“包含”，则只会生成一个PHP警告。|4717638|entityMap|0|LINK|mutability|MUTABLE|url|http://uk.php.net/manual/en/function.isset.php|1|http://uk.php.net/manual/en/function.strlen.php|2|http://uk.php.net/manual/en/function.trim.php|3|http://uk.php.net/manual/en/function.require.php|4|http://uk.php.net/manual/en/function.include.php^0|3|7|V|J|1H|4|3|7|0|0|0|U|8|13|6|U|8|1|13|6|2|0|0|A|9|M|9|A|9|3|M|9|4|0^^$0|@$1|2|3|4|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|D]]|E|@$9|1E|A|1F|1|1G]]|F|$]]|$1|G|3|H|5|6|7|1H|8|@]|E|@]|F|$]]|$1|I|3|J|5|6|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]]|E|@$9|1N|A|1O|1|1P]|$9|1Q|A|1R|1|1S]]|F|$]]|$1|K|3|L|5|M|7|1T|8|@]|E|@]|F|$N|O]]|$1|P|3|Q|5|6|7|1U|8|@$9|1V|A|1W|B|C]|$9|1X|A|1Y|B|C]]|E|@$9|1Z|A|20|1|21]|$9|22|A|23|1|24]]|F|$]]|$1|R|3|-4|5|6|7|25|8|@]|E|@]|F|$]]]|S|$T|$5|U|V|W|F|$X|Y]]|Z|$5|U|V|W|F|$X|10]]|11|$5|U|V|W|F|$X|12]]|13|$5|U|V|W|F|$X|14]]|15|$5|U|V|W|F|$X|16]]]]

When using <a href="http://uk.php.net/manual/en/function.isset.php" rel="nofollow"><code>isset()</code></a> you need to be aware that with an empty GET variable like this <code>script.php?foo=</code> that <code>isset($_GET['foo'])</code> will return TRUE 
Foo is set but has no value.

So if you want to make sure that a GET variable has a value you might want to use <a href="http://uk.php.net/manual/en/function.strlen.php" rel="nofollow"><code>strlen()</code></a> combined with <a href="http://uk.php.net/manual/en/function.trim.php" rel="nofollow"><code>trim()</code></a> instead...

<pre><code>if (strlen(trim($_GET['search'])) &gt; 0) {
 include('search.php');
} else {
 include('home.php');
}</code></pre>

Also you might want to use <a href="http://uk.php.net/manual/en/function.require.php" rel="nofollow"><code>require()</code></a> instead of <a href="http://uk.php.net/manual/en/function.include.php" rel="nofollow"><code>include()</code></a>. A PHP fatal error is generated if search.php cannot be "required" with just a PHP warning if search.php cannot be "included".

I need some help with this I have for example index.php and and i need to make it something like. 
someone access:

<pre><code>index.php?search=blbla 
include search.php
else
include home.php
</code></pre>

I need an advice with this thanks

PHP search url request

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我需要一些帮助，例如，index.php和，我需要让它像这样。有人访问：index.php?search=blbla include search.phpelseinclude home.php我需要一个建议，谢谢

问PHP搜索url请求
EN

回答 7

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问PHP搜索url请求
EN