如何从json，php解码值

Question

I need to decode the below json from a mobile app

Array
(
    [{"unm":"admin","pw”:”password”}] => 
)

and my php code is

$obj1 = print_r($_REQUEST, true); //get $_request variable data(responce of login) data as it is
foreach($obj1 as $key => $value)
{
    $obj2 = $key; //get first key
}
$obj3 = json_decode($obj2); //decode json data to obj3

$mob_user_name = $obj2['unm']; //getting json username field value
$mob_user_password = $obj2['pw']; //getting json password field value

Answer 1

Hope this will fix your issue, Note: content is nothing but which you have received from iOS app

content = Array ( [{"unm":"admin","pw”:”password”}] => )

parse that in php

$json = json_decode($content, true);
print json[0]['unm']; /* prints the username */
print json[0]['pw']; /* prints the password */