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
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. 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
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
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
Copy CodeThe code is as follows:
/* pre-defined array:
* AUTO global variable---Hyper global array
*
* 1. Contains data from the Web server, client, run environment and user input
* 2. These arrays are more specific
* 3. The global scope
Php learning notes pre-defined array (ultra-global array). For more information, see.
The code is as follows:
/* Pre-defined array:
* Automatic global variable --- Super Global Array
*
* 1. contains data from WEB servers, clients, runtime
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