duanqianpu6499 2010-12-18 00:13
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在其他函数可访问的函数内部创建变量?

inside of a function i have a $connection var what obviously stores my connection to mysql, how can i call that var from inside other functions to save me having to paste the $connection var inside of every function that requires this var?

i have tried global to no avail.

many thanks

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  • dongqiao1888 2010-12-18 00:16
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    You could use the old global keyword.

    function a() {
       global $connection;
    }
    

    Or you could throw it in $GLOBALS (this will help you get it out of the function defined it in).

    Neither of them are too pretty.

    Or you could pass in the $connection as an argument.

    The most common way of dealing with a database connection is to have its creation handled by a singleton pattern, or have a base class with OO that has a $this->db available, that all your other classes can inherit from.

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