php http_build_query() 将数组生成URL查询字符串

使用一维数组

$data = array(

'foo'=>'bar',

'baz'=>'boom',

'site'=>'www.Nowamagic.net',

'name'=>'Nowa magic');

echo http_build_query($data);

/* output

foo=bar&baz=boom&cow=milk&PHP=hypertext+processor

*/

如果是索引数组与关联数组混合而成的数组又如何呢？

$data = array(

'foo',

'bar',

'site'=>'www.xxxx.com',

'name'=>'manongjc');

echo http_build_query($data);

/* output

0=foo&1=bar&site=www.xxx.com&name=manongjc

*/

它会自动添加数字索引。

http_build_query 还有一个参数，可以给数字索引加前缀，我们再试试：

$data = array(

'foo',

'site'=>'www.xxx.com',

'name'=>'manongjc');

echo http_build_query($data,"nm_");

/* output

nm_0=foo&nm_1=bar&site=www.xxx.com&name=manongjc

*/

再复杂一些的数组又如何呢？比如二维数组什么的。

$data = array(

'user'=>array( 'name'=>'Bob Smith',

'age'=>47,

'sex'=>'M',

'dob'=>'5/12/1956'),

'pastimes'=>array('golf','opera','poker','rap'),

'children'=>array('bobby'=>array('age'=>12,

'sex'=>'M'),

'sally'=>array('age'=>8,

'sex'=>'F')),

'CEO');

结果：

user%5Bname%5D=Bob+Smith&user%5Bage%5D=47&user%5Bsex%5D=M&user%5Bdob%5D=5%2F12%2F1956

&pastimes%5B0%5D=golf&pastimes%5B1%5D=opera&pastimes%5B2%5D=poker

&pastimes%5B3%5D=rap&children%5Bbobby%5D%5Bage%5D=12&children%5Bbobby%5D%5Bsex%5D=M

&children%5Bsally%5D%5Bage%5D=8&children%5Bsally%5D%5Bsex%5D=F&0=CEO