PHP解析URL并得到URL中的参数

01

<?php

02

//例举一个URL格式的字符串:

03

$str

=

'http://test.com/testdir/index.php?param1=10¶m2=20¶m3=30¶m4=40¶m5=50¶m6=60'

;

04

05

//1.0
用parse_url解析URL,此处是$str

06

$arr

=

parse_url

(

$str

);

07

var_dump(

$arr

);

08

09

10

//2.0
将URL中的参数取出来放到数组里

11

$arr_query

=
convertUrlQuery(

$arr

[

'query'

]);

12

var_dump(

$arr_query

);

13

14

15

//3.0
将参数数组再变回字符串形式的参数格式

16

var_dump(getUrlQuery(

$arr_query

));

17

18

19

/**

20

*
Returnstheurlqueryasassociativearray

21

*

22

*
@paramstringquery

23

*
@returnarrayparams

24

*/

25

function

convertUrlQuery(

$query

)

26

{

27

$queryParts

=

explode

(

'&'

,

$query

);

28

29

$params

=

array

();

30

foreach

(

$queryParts

as

$param

)

31

{

32

$item

=

explode

(

'='

,

$param

);

33

$params

[

$item

[0]]
=

$item

[1];

34

}

35

36

return

$params

;

37

}

38

39

function

getUrlQuery(

$array_query

)

40

{

41

$tmp

=

array

();

42

foreach

(

$array_query

as

$k

=>

$param

)

43

{

44

$tmp

[]
=

$k

.

'='

.

$param

;

45

}

46

$params

=
implode(

'&'

,

$tmp

);

47

return

$params

;

48

}