php variable const

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php variable const

<?php class foo // 自 PHP 5.3.0 起 const bar = <<<'EOT' bar. EOT; } ?> ... A constant is a name for a value (but it's NOT a variable), that usually will be replaced ... ,$class->showConstant(); echo $class::constant."-n"; // 自 PHP 5.3.0 起 ?> Example #2 靜態數據示例. <?php class foo // 自 PHP 5.3.0 起 const bar = <<<'EOT' ,14 years ago. Technically you can define constants with names that are not valid for variables: <?php // $3some is not a valid variable name // This will not work ,You can access constants anywhere in your script without regard to scope. For more information on scope, read the manual section on variable scope. ,As of PHP 5.3 there are two ways to define constants: Either using the const ... You still won't be able to define consts in terms of variables or function returns ... ,Constants are like variables except that once they are defined they cannot be changed or undefined. PHP Constants. A constant is an identifier (name) for a ... ,The default visibility of class constants is public. The value must be a constant expression, not (for example) a variable, a property, or a function call. It's also ... ,I.e. it is stored in a variable or returned by a function. This function works also with class constants. Parameters ¶. name. The constant name. ,The name of a constant follows the same rules as any label in PHP. A valid ... For more information on scope, read the manual section on variable scope. , PHP教學- 常數(Constants) ... 使用define()函式或const關鍵字宣告常數(PHP 5.3.0之後),但const關鍵字無法用 ... 上一篇PHP教學- 變數(Variables).

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php variable const 相關參考資料
class constants - PHP

&lt;?php class foo // 自 PHP 5.3.0 起 const bar = &lt;&lt;&lt;&#39;EOT&#39; bar. EOT; } ?&gt; ... A constant is a name for a value (but it&#39;s NOT a variable), that usually will be replaced&nbsp;...

https://www.php.net

const - PHP學習誌 - Google Sites

$class-&gt;showConstant(); echo $class::constant.&quot;-n&quot;; // 自 PHP 5.3.0 起 ?&gt; Example #2 靜態數據示例. &lt;?php class foo // 自 PHP 5.3.0 起 const bar = &lt;&lt;&lt;&#39;EOT&#39;

https://sites.google.com

constant - Manual - PHP

14 years ago. Technically you can define constants with names that are not valid for variables: &lt;?php // $3some is not a valid variable name // This will not work

https://www.php.net

constant, PHP - PHP: Constants - Manual

You can access constants anywhere in your script without regard to scope. For more information on scope, read the manual section on variable scope.

https://www.php.net

define() vs. const - Stack Overflow

As of PHP 5.3 there are two ways to define constants: Either using the const ... You still won&#39;t be able to define consts in terms of variables or function returns&nbsp;...

https://stackoverflow.com

PHP Constants - W3Schools

Constants are like variables except that once they are defined they cannot be changed or undefined. PHP Constants. A constant is an identifier (name) for a&nbsp;...

https://www.w3schools.com

PHP: Class Constants - Manual - PHP.net

The default visibility of class constants is public. The value must be a constant expression, not (for example) a variable, a property, or a function call. It&#39;s also&nbsp;...

https://www.php.net

PHP: constant - Manual - PHP.net

I.e. it is stored in a variable or returned by a function. This function works also with class constants. Parameters ¶. name. The constant name.

https://www.php.net

PHP: Constants - Manual

The name of a constant follows the same rules as any label in PHP. A valid ... For more information on scope, read the manual section on variable scope.

https://www.php.net

PHP教學- 常數(Constants) @ 小殘的程式光廊:: 痞客邦::

PHP教學- 常數(Constants) ... 使用define()函式或const關鍵字宣告常數(PHP 5.3.0之後),但const關鍵字無法用 ... 上一篇PHP教學- 變數(Variables).

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