#一, PHP variable definition: Variables are used to store values, such as numbers, text strings or arrays, V: string/integer/double/array/object
Naming rules:
1. The variable name of PHP is case-sensitive. 2. The variable name must begin with $3,
Php obtains the php server variable in the current url path.
Programming in php to obtain the current url address and server variables mainly uses the following global variables: $ _ server ["query_string"], $ _ server ["request_uri"], $ _
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First, PHP gets the URL of the current page:
Copy the Code code as follows:
Get the current script URLfunction Getcururl (){if (!empty ($_server["Request_uri")){$scriptName = $_server["Request_uri"];$nowurl = $scriptName;}Else{$scriptName =
Php retrieves the current url and replaces the parameter or url. First, PHP retrieves the URL of the current page: Copy the code as follows: get the current script URL functionGetCurUrl () {if (! Empty ($ _ SERVER [REQUEST_URI]) {$ scriptName $ _
The first is PHP to get the current page URL:
Copy Code code as follows:
Get the current script URL
function Getcururl ()
{
if (!empty ($_server["Request_uri"]))
{
$scriptName = $_server["Request_uri"];
$nowurl =
: This article mainly introduces php programming notes. if you are interested in PHP tutorials, please refer to them. Three methods for php to obtain POST data
Php image watermarking source code
Php + ajax + json is the simplest example.
Php Chinese
Php programming notes-three methods for obtaining POST data from small_123 php
Php image watermarking source code
Php + ajax + json is the simplest example.
Php Chinese character to pinyin source code
Php traverses the Directory, generates the md5
Php pre-defined variable help (with instance ). From php4.1.0, the preferred method for getting external variables is to use the Superglobal variables mentioned below. Prior to this, people were either dependent on register_globals, or long
The preferred method for php to obtain external variables is to use the hyperglobal variables mentioned below. Prior to this, people were either dependent on register_globals or long pre-defined PHP array ($ HTTP _ * _ VARS ). From PHP5.0.0, PHP
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