Parse a string containing a query string and access a specific value

Question

I am fetching some API data with cURL and it returns the output in following string:

$response = "oauth_token=xxx&oauth_token_secret=yyy&oauth_expires_in=3600&xoauth_request_auth_url=https%3A%2F%2Fapi.login.yahoo.com%2Foauth%2Fv2%2Frequest_auth%3Foauth_token%3Dxxx&oauth_callback_confirmed=true";

How can I get the values for each of the key from the above string, for example I want to get the xoauth_request_auth_url value. Currently I'm doing it in following way:

$arr = explode('&', $response);

$url = $arr[3];     
$url = explode('=', $url);

$xoauth_request_auth_url = $url[1]; //final result

My questions:

Is there an efficient way to get the above value (I'm afraid above method will not work if there's an & in any of the variable vlaue)?
How can I convert the URl value into url format? For example currently it is:

https%3A%2F%2Fapi.login.yahoo.com

I would like to convert it into:

https://api.login.yahoo.com

Mikel Bitson · Accepted Answer · 2015-11-09 21:00:05Z

3

Use parse_str, like so:

$values = array();
parse_str($response, $values);
var_dump($values);

Also, if you need to remove the URL encoded characters from any of the values, use urldecode.

answered Nov 9, 2015 at 21:00

Mikel Bitson

3,6471 gold badge20 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

AbraCadaver · Accepted Answer · 2015-11-09 21:00:53Z

1

parse_str() to parse a URL query string into an array and urldecode() to get the decoded characters:

parse_str($response, $array);
$array = array_map('urldecode', $array);

print_r($array);

Yields:

Array
(
    [oauth_token] => xxx
    [oauth_token_secret] => yyy
    [oauth_expires_in] => 3600
    [xoauth_request_auth_url] => https://api.login.yahoo.com/oauth/v2/request_auth?oauth_token=xxx
    [oauth_callback_confirmed] => true
)

answered Nov 9, 2015 at 21:00

AbraCadaver

79.2k7 gold badges75 silver badges91 bronze badges

Comments

Elentriel · Accepted Answer · 2015-11-09 21:16:06Z

0

http://php.net/manual/en/function.parse-str.php

or you can build your own function (i can give you guidelines should parse-str not cover your needs)

as for your second question,it also answers part of the first. Uri components are being encoded and therefore you will not find (or should not find) an actual & character. Like wise to decode url's. use http://php.net/manual/en/function.urldecode.php and to encode its function pair urlencode

answered Nov 9, 2015 at 21:16

Elentriel

1,2378 silver badges21 bronze badges

Collectives™ on Stack Overflow

Parse a string containing a query string and access a specific value

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related