blocks|key|1348824|text|静态类变量可以全局引用，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1348825|class+myGlobals+{

+++static+$myVariable;

}

function+a()+{

++print+myGlobals::$myVariable;

}|code-block|syntax|javascript|1348826|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|$]]

Static class variables can be referenced globally, e.g.:

<pre><code>class myGlobals {

 static $myVariable;

}

function a() {

 print myGlobals::$myVariable;

}
</code></pre>

blocks|key|1349037|text|是的，这是可能的，但不能使用所谓的“核心”PHP功能。您必须安装一个名为runkit7：Installation的扩展|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1349038|在此之后，您可以在php.ini中设置您的自定义超全局变量，如下所示：ini.runkit.superglobal|1349039|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/book.runkit7.php|1|https://www.php.net/manual/en/runkit7.installation.php|2|https://www.php.net/manual/en/runkit7.configuration.php#ini.runkit.superglobal^0|10|7|0|18|C|1|0|Z|M|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]|$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|F|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]|P|$5|I|J|K|C|$L|Q]]]]

Yes, it is possible, but not with the so-called &quot;core&quot; PHP functionalities. You have to install an extension called <a href="https://www.php.net/manual/en/book.runkit7.php" rel="nofollow noreferrer">runkit7</a>:
<a href="https://www.php.net/manual/en/runkit7.installation.php" rel="nofollow noreferrer">Installation</a>
After that, you can set your custom superglobals in php.ini as documented here:
<a href="https://www.php.net/manual/en/runkit7.configuration.php#ini.runkit.superglobal" rel="nofollow noreferrer">ini.runkit.superglobal</a>

blocks|key|1564357|text|我想你已经有了它--你在全局空间中创建的每个变量都可以像这样使用$GLOBALS超级全局来访问：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1564358|//+in+global+space
$myVar+=+"hello";

//+inside+a+function
function+foo()+{
++++echo+$GLOBALS['myVar'];
}|code-block|syntax|javascript|1564359|entityMap^0|W|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I think you already have it - every variable you create in global space can be accessed using the <code>$GLOBALS</code> superglobal like this:
<pre class="lang-php prettyprint-override"><code>// in global space
$myVar = &quot;hello&quot;;

// inside a function
function foo() {
 echo $GLOBALS['myVar'];
}
</code></pre>

blocks|key|1348951|text|+++Class+Registry+{
+private+$vars+=+array();
+public+function+__set($index,+$value){$this->vars[$index]+=+$value;}
+public+function+__get($index){return+$this->vars[$index];}
}
$registry+=+new+Registry;

function+_REGISTRY(){
++++global+$registry;
++++return+$registry;
}

_REGISTRY()->sampleArray=array(1,2,'red','white');

//_REGISTRY()->someOtherClassName+=+new+className;
//_REGISTRY()->someOtherClassName->dosomething();

class+sampleClass+{
++++public+function+sampleMethod(){
++++++++print_r(_REGISTRY()->sampleArray);+echo+' ';
++++++++_REGISTRY()->sampleVar='value';
++++++++echo+_REGISTRY()->sampleVar.' ';

++++}
}

$whatever+=+new+sampleClass;

$whatever->sampleMethod();|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1348952|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> Class Registry {
 private $vars = array();
 public function __set($index, $value){$this-&gt;vars[$index] = $value;}
 public function __get($index){return $this-&gt;vars[$index];}
}
$registry = new Registry;

function _REGISTRY(){
 global $registry;
 return $registry;
}

_REGISTRY()-&gt;sampleArray=array(1,2,'red','white');

//_REGISTRY()-&gt;someOtherClassName = new className;
//_REGISTRY()-&gt;someOtherClassName-&gt;dosomething();

class sampleClass {
 public function sampleMethod(){
 print_r(_REGISTRY()-&gt;sampleArray); echo '&lt;br/&gt;';
 _REGISTRY()-&gt;sampleVar='value';
 echo _REGISTRY()-&gt;sampleVar.'&lt;br/&gt;';

 }
}

$whatever = new sampleClass;

$whatever-&gt;sampleMethod();
</code></pre>

blocks|key|1348986|text|解决这个问题的另一种方法是使用静态类方法或变量。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1348987|例如：|1348988|class+myGlobals+{

+++public+static+$myVariable;

}|code-block|syntax|javascript|1348989|然后，在您的函数中，您可以简单地引用您的全局变量，如下所示：|1348990|function+Test()
{
+echo+myGlobals::$myVariable;
}|1348991|不像其他语言那样干净，但至少你不需要一直声明它是全局的。|1348992|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

One other way to get around this issue is to use a static class method or variable.

For example:

<pre><code>class myGlobals {

 public static $myVariable;

}
</code></pre>

Then, in your functions you can simply refer to your global variable like this:

<pre><code>function Test()
{
 echo myGlobals::$myVariable;
}
</code></pre>

Not as clean as some other languages, but at least you don't have to keep declaring it global all the time.

blocks|key|1564275|text|不怎么有意思。不过，如果你不介意它的丑陋，你可以滥用它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1564276|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|$]]

Not really. though you can just abuse the ones that are there if you don't mind the ugliness of it.

blocks|key|1564404|text|您还可以使用服务器的环境变量，并在PHP中访问这些变量这是一个存储全局数据库访问的好方法，如果您拥有并独占使用服务器的话。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1564405|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 also use the Environment variables of the server, and access these in PHP
This is a good way to maybe store global database access if you own and exclusively use the server.

is there a way to create my own custom superglobal variables like $_POST and $_GET?

create superglobal variables in php?

数据库

服务器

有没有办法创建我自己的像$_POST和$_GET这样的自定义超全局变量？

问在php中创建超全局变量？
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回答 7

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