Php get url parameter program code summary_php tutorial

Php obtains the summary of url parameter program code. The parse_url function first describes the parse_url function. The official solution is mixedparse_url (string $ url [, int $ component-1]). This function parses a URL and returns an associated parse_url function.

Let's take a look at the parse_url function.

Description

Mixed parse_url (string $ url [, int $ component =-1])

This function parses a URL and returns an associated array, which contains various components in the URL.

This function is not used to verify the validity of a given URL, but is used to separate it into the parts listed below. Incomplete URLs are also accepted, and parse_url () tries to parse them correctly as much as possible.

The URL to be parsed. Invalid characters are replaced.

Instance

The code is as follows:
$ Url = "http://www.45it.net/welcome "; $ Parts = parse_url ($ url ); Print_r ($ parts ); Array ( [Scheme] => http [Host] => www.45it.net [Path] =>/welcome/ )

You can also write an algorithm on your own! As follows:

The code is as follows:
Function getParams () { $ Url = '/index. php? _ P = index & _ a = show & x = 12 & y = 23 '; $ Refer_url = parse_url ($ url ); $ Params = $ refer_url ['query']; $ Arr = array (); If (! Empty ($ params )) { $ ParamsArr = explode ('&', $ params ); Foreach ($ paramsArr as $ k => $ v) { $ A = explode ('=', $ v ); $ Arr [$ a [0] = $ a [1]; } } Return $ arr; }

Call method

The code is as follows:
$ Arr = getParams (); Print_r ($ arr );

Result

Result: Array ([_ p] => index [_ a] => show [x] => 12 [y] => 23)

For details, refer to the parse_url function. The official solution is mixed parse_url (string $ url [, int $ component =-1]). This function parses a URL and returns an association...