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php predefined variables
- 伊谢尔伦Original
- 2016-11-22 11:08:551090browse
For all scripts, PHP provides a large number of predefined variables. These variables represent all external variables as built-in environment variables and error messages as return headers.
Super global variables — Super global variables are built-in variables that are always available in all scopes
$GLOBALS — References all variables available in the global scope
$_SERVER — Server and execution environment information
$_GET — HTTP GET variable _ $ _post - http post variables
$ _Files -http file upload variables
$ _Request — Http Request variables
$ _Session
$ _NV
_ _ _ _ _ _ — — — _ _ _ _ _ _
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