blocks|key|1490389|text|创建一个常量文件并将其包含在要访问这些常量的文件中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1490390|将文件作为|1490391|include+'file_path';|code-block|syntax|javascript|1490392|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Create one constant file and include it in file in where you want to access those constants.

Include file as

<pre><code>include 'file_path';
</code></pre>

blocks|key|1490399|text|嗨，最好的办法是，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1490400|您可以创建一个名为“.php”的defines.php文件，并确保将该文件包含在每个.php文件中。|1490401|让你的变量，常量在该文件中。这样你就可以进入它们了。|1490402|其他方法是，可以将值设置为现有的全局变量。|1490403|喜欢,|1490404|$_SERVER['car']+=+"ferrari"|offset|length|style|CODE|1490405|谢谢。|1490406|entityMap^0|0|0|0|0|0|0|R|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|Y|8|@$L|Z|M|10|N|O]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|11|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|S|$]]

Hi The best way to do this is,

You make a .php file called "defines.php" and make sure to include that file in your each .php files. 

make your variables, constants sits in that file. So that you can access them.

Other method would be, you can set the values to a existing Global variable. 

like,

<code>$_SERVER['car'] = "ferrari"</code>

Thanks.

blocks|key|2857821|text|您可以使用SESSION或include概念。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2857822|(+1)使用SESSION|2857823|file1.php|BOLD|2857824|session_start();
$_SESSION['car']+=+'ferrari';|code-block|syntax|javascript|2857825|file2.php|2857826|session_start();
echo+$_SESSION['car'];++//Result:+ferrari|2857827|(+2)使用include|2857828|2857829|include+'file1.php';
echo+$car+//Result:+ferrari|2857830|entityMap^0|5|7|D|7|0|6|7|0|0|9|0|0|0|9|0|0|6|7|0|0|9|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|18|8|@$9|19|A|1A|B|J]]|D|@]|E|$]]|$1|K|3|L|5|M|7|1B|8|@]|D|@]|E|$N|O]]|$1|P|3|Q|5|6|7|1C|8|@$9|1D|A|1E|B|J]]|D|@]|E|$]]|$1|R|3|S|5|M|7|1F|8|@]|D|@]|E|$N|O]]|$1|T|3|U|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|V|3|Q|5|6|7|1J|8|@$9|1K|A|1L|B|J]]|D|@]|E|$]]|$1|W|3|X|5|M|7|1M|8|@]|D|@]|E|$N|O]]|$1|Y|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|Z|$]]

You can use <code>SESSION</code> or <code>include</code> concept.

1) By using <code>SESSION</code>

file1.php

<pre><code>session_start();
$_SESSION['car'] = 'ferrari';
</code></pre>

file2.php

<pre><code>session_start();
echo $_SESSION['car']; //Result: ferrari
</code></pre>

2) By using <code>include</code>

file2.php

<pre><code>include 'file1.php';
echo $car //Result: ferrari
</code></pre>

blocks|key|1486322|text|在项目的根目录中创建init.php。|type|unordered-list-item|depth|inlineStyleRanges|entityRanges|data|1486323|如果您需要常量变量(所以不能编辑它)--在项目的根dir中创建constants.php。|unstyled|1486324|如果需要可编辑变量--在项目的根dir中创建globals.php。|1486325|constants.php|offset|length|style|BOLD|1486326|<?php
define('CAR',+'ferrari');|code-block|syntax|javascript|1486327|globals.php|1486328|<?php

class+Globals
{
++public+static+$car+=+'ferrari';
}|1486329|包括constants.php和globals.php+to+init.php。|1486330|<?php
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'constants.php');
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'globals.php');|1486331|包括init.php到php源代码。|1486332|<?php
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'init.php');|1486333|如果您需要长期使用变量，那么使用会话，而不仅仅是一个页面负载。(用户登录、设置.)|1486334|<?php
$_SESSION['car']+=+'ferrari';|1486335|在php源中，可以使用常量变量和全局变量：|1486336|示例：|1486337|<?php
echo+CAR;+//ferrari

echo+Globals::$car;+//ferrari

Globals::$car+=+'renault';+//set+your+global+variable

echo+Globals::$car;+//renault|1486338|参考文献：|1486339|http://php.net/manual/en/language.oop5.static.php
http://php.net/manual/en/function.define.php
http://php.net/manual/en/function.dirname.php
http://php.net/manual/en/reserved.variables.session.php|blockquote|1486340|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/language.oop5.static.php|1|http://php.net/manual/en/function.define.php|2|http://php.net/manual/en/function.dirname.php|3|http://php.net/manual/en/reserved.variables.session.php^0|0|0|0|0|D|0|0|0|B|0|0|2|D|G|B|V|8|0|0|2|8|0|0|0|0|0|0|0|0|5|0|0|1D|0|1E|18|1|2N|19|2|3X|1J|3|0^^$0|@$1|2|3|4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1X|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|1Y|8|@]|9|@]|A|$]]|$1|G|3|H|5|D|7|1Z|8|@$I|20|J|21|K|L]]|9|@]|A|$]]|$1|M|3|N|5|O|7|22|8|@]|9|@]|A|$P|Q]]|$1|R|3|S|5|D|7|23|8|@$I|24|J|25|K|L]]|9|@]|A|$]]|$1|T|3|U|5|O|7|26|8|@]|9|@]|A|$P|Q]]|$1|V|3|W|5|D|7|27|8|@$I|28|J|29|K|L]|$I|2A|J|2B|K|L]|$I|2C|J|2D|K|L]]|9|@]|A|$]]|$1|X|3|Y|5|O|7|2E|8|@]|9|@]|A|$P|Q]]|$1|Z|3|10|5|D|7|2F|8|@$I|2G|J|2H|K|L]]|9|@]|A|$]]|$1|11|3|12|5|O|7|2I|8|@]|9|@]|A|$P|Q]]|$1|13|3|14|5|D|7|2J|8|@]|9|@]|A|$]]|$1|15|3|16|5|O|7|2K|8|@]|9|@]|A|$P|Q]]|$1|17|3|18|5|D|7|2L|8|@]|9|@]|A|$]]|$1|19|3|1A|5|D|7|2M|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|O|7|2N|8|@]|9|@]|A|$P|Q]]|$1|1D|3|1E|5|D|7|2O|8|@$I|2P|J|2Q|K|L]]|9|@]|A|$]]|$1|1F|3|1G|5|1H|7|2R|8|@]|9|@$I|2S|J|2T|1|2U]|$I|2V|J|2W|1|2X]|$I|2Y|J|2Z|1|30]|$I|31|J|32|1|33]]|A|$]]|$1|1I|3|-4|5|D|7|34|8|@]|9|@]|A|$]]]|1J|$1K|$5|1L|1M|1N|A|$1O|1P]]|1Q|$5|1L|1M|1N|A|$1O|1R]]|1S|$5|1L|1M|1N|A|$1O|1T]]|1U|$5|1L|1M|1N|A|$1O|1V]]]]

<ul>
<li>create init.php in your project's root directory.</li>
</ul>

If you need constant variable (so, you can't edit it)
- create constants.php in your project's root dir.

If you need editable variable
- create globals.php in your project's root dir.

constants.php

<pre><code>&lt;?php
define('CAR', 'ferrari');
</code></pre>

globals.php

<pre><code>&lt;?php

class Globals
{
 public static $car = 'ferrari';
}
</code></pre>

include constants.php and globals.php to init.php.

<pre><code>&lt;?php
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'constants.php');
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'globals.php');
</code></pre>

include init.php to php sources.

<pre><code>&lt;?php
require_once(dirname(__FILE__).DIRECTORY_SEPARATOR.'init.php');
</code></pre>

If you need variable for long use, not only one pageload, then use session. (user logins, settings, ...)

<pre><code>&lt;?php
$_SESSION['car'] = 'ferrari';
</code></pre>

In your php sources, you can use constant and global variables:

Example:

<pre><code>&lt;?php
echo CAR; //ferrari

echo Globals::$car; //ferrari

Globals::$car = 'renault'; //set your global variable

echo Globals::$car; //renault
</code></pre>

Refs:

<blockquote>
 <a href="http://php.net/manual/en/language.oop5.static.php" rel="nofollow">http://php.net/manual/en/language.oop5.static.php</a>
 
 <a href="http://php.net/manual/en/function.define.php" rel="nofollow">http://php.net/manual/en/function.define.php</a>
 
 <a href="http://php.net/manual/en/function.dirname.php" rel="nofollow">http://php.net/manual/en/function.dirname.php</a>
 
 <a href="http://php.net/manual/en/reserved.variables.session.php" rel="nofollow">http://php.net/manual/en/reserved.variables.session.php</a>
</blockquote>

Is there a way to create/define a variable available to all php files(like superglobals)

<blockquote>
 Example:
 
 i define a variable in file1.php <code>$car = ferrari</code>
 
 then in file2.php i write <code>echo $car;</code>
 
 then it will output <code>ferrari</code>
</blockquote>

how can i define a variable in file1.php and access it in file2.php

EDIT:

The answers is good, but do is there another alternative?because i will have multiple php files in multiple directories, do i have to create its own php file for each directory?if thats the only way, then i'll do it.

How can i define a variable available to all php files(like superglobals)

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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是否有一种方法可以创建/定义所有php文件可用的变量(如superglobals)示例：我在file1.php $car = ferrari中定义一个变量然后在file2.php中编写echo $car;然后它将输出ferrari如何在file1.php中定义变量并在file2.php中访问它编辑：答案很好，但还有其他...

问如何定义对所有php文件都可用的变量(如superglobals)
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问如何定义对所有php文件都可用的变量(如superglobals)EN