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    <p>PHP is not able to keep variable values between requests. This means that each time your script is called, the <code>$bool</code>-variable will be set to true. If you want to keep the value between requests you have to use <a href="http://php.net/manual/en/features.sessions.php" rel="noreferrer"><code>sessions</code></a> or, if you want the variable shared between sessions, some caching mechanism like <a href="http://php.net/manual/en/book.apc.php" rel="noreferrer"><code>APC</code></a> or <a href="http://php.net/manual/en/book.memcache.php" rel="noreferrer"><code>Memcache</code></a>.</p> <p>Also, <code>static</code> is used in PHP to declare a variable shared on the class level. It is thus used in classes, and accessed like <code>self::$variableName;</code> or <code>Foo::$variableName</code></p> <p>You can read more about <a href="http://php.net/manual/en/language.oop5.static.php" rel="noreferrer">static properties here</a>. From the docs:</p> <blockquote> <p>Declaring class properties or methods as static makes them accessible without needing an instantiation of the class. A property declared as static can not be accessed with an instantiated class object (though a static method can).</p> </blockquote> <p>Also, note that the word <code>static</code> has been overloaded since PHP 5.3, and can also be used to denote <em><a href="http://www.php.net/manual/en/language.oop5.late-static-bindings.php" rel="noreferrer">Late Static Binding</a></em>, by use of <code>static::</code></p>
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    1. POHow do I change a static variables value in PHP?
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    1. USPatrikAkerstrand
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    1. COHmm.. So if I moved the static variable to a class, would I then be able to switch it's value back and forth between the executions of my main script?
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    2. CONo, see my answer.
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    3. CONo. Static can be used to declare class variables or within function to declare a variable which persists over function calls, but not over executions of the script.
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      1. USClaudio Albertin
 

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