$ _ FILE: $ _ FILE () whether the format is system function or pre-defined variable. I think the php Manual is a pre-defined variable, but some course lecturers talk about system functions, who is right? Shared to: $ _ FILE
$ _ FILE () is this format a system function or a predefined variable. I think the php Manual is a predefined variable. but some course lecturers talk about system functions. who is the correct one?
Share:
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$ _ FILE: how can it be a system function? it is a pre-defined array. First, let's clarify what a function is and what a variable is!
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Pre-defined variables, of course, the manual is correct
Even if the translation is inaccurate, it cannot be translated as a "function"
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I don't understand what you mean by passing parameters. can you give an example to illustrate the example of passing parameters in detail?
If you are talking about the format $ _ FILE ['tmp '], it is not to pass the parameter, but to get the value of the tmp element in the array.
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The input parameter!
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The landlord is a bit talkative. the above two have already explained clearly. We recommend that you flip through the manual.
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Reference:
Quote: reference:
The landlord is a bit talkative. the above two have already explained clearly. We recommend that you flip through the manual.
Newbie, I don't know much about it, so I need to figure it out!
The concept of parameters is usually associated with functions. in the scope of php source code, $ a ['B'] cannot be counted as passing parameters because it is an element operation and not a function call. However, when it comes to the scope that the source code will be executed by the php execution engine, $ a ['B'] is also implemented by functions at the underlying layer, which can also be counted as passing parameters.
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Predefined variables
