PHP----Pre-defined arrays

Pre-defined array Hyper-global array

<?php 
/* pre-defined array: 
* Automatic Global variables---A hyper-global array 
* 
* 1. Contains the Web server, client, run environment, and user input data 
* 2. These arrays are more specific 
* 3. The global scope automatically takes effect, you can use these arrays directly 
* 4. Users cannot customize these arrays, but these arrays operate in the same way as array operations of their own definition 
* 5. These arrays can be used directly in the function 
* 
* $_get//via URL Request commit to script variable 
* $_post//viathe HTTP POST method submits a variable to the script 
* $_request//viaGET, Post andvariables that the cookie mechanism submits to the script 
* $_files//viahttp POST method file upload and commit to script variables 
* $_cookie 
* $_session 
* $_env//Execution Environment commit to script variable 
* $_server//variable byset by the Web server, or directly associated with the execution environment of the current script 
* $GLOBALS//As long as the current script is valid variables are here, the array's key name is the name of the global script 
* 
* 
*/ 
//Hyper Global array can be called directly inside the function 
$arr =array (10,20);//General Array 
$_get=array (50,90);///Hyper Global Array 

PHP----Pre-defined arrays