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Php array declaration, traversal, array global variables. Php Tutorial array declaration, traversal, array global variable [php]? ** 1. Array Overview * 1. the essence of arrays: managing and operating a group of variables, batch processing * 2.

PHP Tutorial: Array declaration, traversal, array global variables Copy CodeThe code is as follows: /* * First, an overview of arrays * 1. The nature of the array: managing and manipulating a set of variables, batch processing * 2. Compound type

Php Tutorial: array declaration, traversal, array global variables Copy codeThe Code is as follows: /* * 1. array Overview * 1. The essence of Arrays: managing and operating a group of variables, batch processing * 2. array composite type (multiple

Global variables: Variables defined in the main program (outside the function), can only be used in the main program, cannot be called inside the functionBackground: Solving the problem of calling global variables inside a functionWorkaround:1.

PHP pre-defined variable 9 Super Global array usage details, global array. PHP pre-defined variables 9: Usage of ultra-Global Arrays. Global Arrays 1 and $ _ SERVER Super global variables contain information created by the web SERVER, it provides

The essence of arrays: manages and operates a group of variables and processes them in batches. The following describes the array classification, array classification, and usage instructions. Php Tutorial: Array declaration, traversal, array global

PHP Predefined variables 9 large Super Global array usage details, global array 1, $_server The $_server Super global variable contains information created by the Web server that provides information about the server and client configuration and

1. Can a local variable be renamed with a global variable? A: Yes. Global blocking will be performed in some cases. To use global variables, you must use "::" A local variable can have the same name as a global variable. A local variable with the

1, can local variables and global variable duplicate? A: Yes, the local will screen the overall situation. To use a global variable, you need to use the "::" Local variables can have the same name as global variables, and when referenced within a

1.PHP pre-defined array of hyper-global variablesCharacteristics:A. Special array, no difference in operation modeB. Without a declaration, the PHP script exists by default because it is not defined in PHP, so the custom variable should be avoided