Solved

can't work with a json returned string

Posted on 2013-11-09
16
440 Views
Last Modified: 2013-11-09
i have a json string i'm capturing form piwik analytics, for page hit

heres the data
a:1:{i:0;a:18:{s:5:"label";s:27:"/single_event_page.php?id=2";s:9:"nb_visits";i:1;s:7:"nb_hits";i:1;s:14:"sum_time_spent";i:714;s:28:"nb_hits_with_time_generation";s:1:"1";s:19:"min_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:19:"max_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:15:"entry_nb_visits";s:1:"1";s:16:"entry_nb_actions";s:1:"2";s:22:"entry_sum_visit_length";s:3:"715";s:18:"entry_bounce_count";s:1:"0";s:26:"sum_daily_nb_uniq_visitors";i:1;s:32:"sum_daily_entry_nb_uniq_visitors";i:1;s:16:"avg_time_on_page";d:714;s:11:"bounce_rate";s:2:"0%";s:9:"exit_rate";s:2:"0%";s:19:"avg_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:3:"url";s:52:"http://completelocal.info/single_event_page.php?id=2";}}

Open in new window


i've tried varous way to try and use this info and everything i try either is blank or null as a return so what am i doing wrong
im trying to see how many unique hits are on the page

heres my code i have
<?
//****************************************************************
// Filename..: __.php
// Author....: __
// Date......: mm/dd/yyyy
// Purpose...: __
// SQL.......: server/database/tables/tablename
//****************************************************************
// include("filename.php");

function prettyPrint( $json )
{
    $result = '';
    $level = 0;
    $prev_char = '';
    $in_quotes = false;
    $ends_line_level = NULL;
    $json_length = strlen( $json );

    for( $i = 0; $i < $json_length; $i++ ) {
        $char = $json[$i];
        $new_line_level = NULL;
        $post = "";
        if( $ends_line_level !== NULL ) {
            $new_line_level = $ends_line_level;
            $ends_line_level = NULL;
        }
        if( $char === '"' && $prev_char != '\\' ) {
            $in_quotes = !$in_quotes;
        } else if( ! $in_quotes ) {
            switch( $char ) {
                case '}': case ']':
                    $level--;
                    $ends_line_level = NULL;
                    $new_line_level = $level;
                    break;

                case '{': case '[':
                    $level++;
                case ',':
                    $ends_line_level = $level;
                    break;

                case ':':
                    $post = " ";
                    break;

                case " ": case "\t": case "\n": case "\r":
                    $char = "";
                    $ends_line_level = $new_line_level;
                    $new_line_level = NULL;
                    break;
            }
        }
        if( $new_line_level !== NULL ) {
            $result .= "\n".str_repeat( "\t", $new_line_level );
        }
        $result .= $char.$post;
        $prev_char = $char;
    }

    return $result;
}

$id ="2";
$url = "http://xxxx.xxx/analytics/index.php?module=API&method=Actions.getPageUrl&pageUrl=/single_event_page.php?id=" . $id . "&idSite=1&period=month&date=today&format=php&filter_limit=1&token_auth=0a653dd77008f450c5ca2493f4e9046c";
echo "url info: ".$url;
$page_hits_info = file_get_contents($url);
$contents = file_get_contents($url); 
$contents = utf8_encode($contents); 
$results = json_decode($contents);
echo "<br>";
$json=$results;
var_dump(json_decode($json));
echo "<br>";
var_dump(json_decode($json, true));
/**/

echo "<br>";
echo "<pre>";
var_dump($json);
echo "</pre>";


echo "<br> new <br>";
$id ="2";
$url = "http://xxxx.xxx/analytics/index.php?module=API&method=Actions.getPageUrl&pageUrl=/single_event_page.php?id=" . $id . "&idSite=1&period=month&date=today&format=php&filter_limit=1&token_auth=0a653dd77008f450c5ca2493f4e9046c";

$json_string = $url;
$jsondata = file_get_contents($json_string);
$obj = json_decode($jsondata);
echo "<pre>";
var_dump($obj);
echo "</pre>";



$json_data1='a:1:{i:0;a:18:{s:5:"label";s:27:"/single_event_page.php?id=2";s:9:"nb_visits";i:1;s:7:"nb_hits";i:1;s:14:"sum_time_spent";i:714;s:28:"nb_hits_with_time_generation";s:1:"1";s:19:"min_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:19:"max_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:15:"entry_nb_visits";s:1:"1";s:16:"entry_nb_actions";s:1:"2";s:22:"entry_sum_visit_length";s:3:"715";s:18:"entry_bounce_count";s:1:"0";s:26:"sum_daily_nb_uniq_visitors";i:1;s:32:"sum_daily_entry_nb_uniq_visitors";i:1;s:16:"avg_time_on_page";d:714;s:11:"bounce_rate";s:2:"0%";s:9:"exit_rate";s:2:"0%";s:19:"avg_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:3:"url";s:52:"http://xxxx.xxx/single_event_page.php?id=2";}';
$obj1 = json_decode($json_data1);
echo "<pre>";
var_dump($obj1);
echo "</pre>";


?>

Open in new window

note: i changed the domain name

thank you in advance for any code or help you may provide
0
Comment
Question by:Johnny
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 8
  • 7
16 Comments
 
LVL 58

Expert Comment

by:Gary
ID: 39636003
That is not valid JSON
0
 
LVL 35

Accepted Solution

by:
Robert Schutt earned 500 total points
ID: 39636004
That is not a json string.

One solution would be to change the requested format in your url, on line 87 change:
...&format=php&...

Open in new window

to
...&format=json&...

Open in new window

0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636129
I just tested out the other option, if you want to work with the current format (php serialized string), use unserialize instead of json_decode.

I only tried out the literal string, which needed some changes near the end to work:
$json_data1='a:1:{i:0;a:18:{s:5:"label";s:27:"/single_event_page.php?id=2";s:9:"nb_visits";i:1;s:7:"nb_hits";i:1;s:14:"sum_time_spent";i:714;s:28:"nb_hits_with_time_generation";s:1:"1";s:19:"min_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:19:"max_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:15:"entry_nb_visits";s:1:"1";s:16:"entry_nb_actions";s:1:"2";s:22:"entry_sum_visit_length";s:3:"715";s:18:"entry_bounce_count";s:1:"0";s:26:"sum_daily_nb_uniq_visitors";i:1;s:32:"sum_daily_entry_nb_uniq_visitors";i:1;s:16:"avg_time_on_page";d:714;s:11:"bounce_rate";s:2:"0%";s:9:"exit_rate";s:2:"0%";s:19:"avg_time_generation";d:0.409999999999999975575093458246556110680103302001953125;s:3:"url";s:42:"http://xxxx.xxx/single_event_page.php?id=2";}}'; // note changed s:52 to s:42 and added }

$obj1 = unserialize($json_data1);

echo "<pre>";
var_dump($obj1);
echo "</pre>";

Open in new window

You can see that it works on my site here: http://schutt.nl/ee/Q_28289970/
0
SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

 

Author Comment

by:Johnny
ID: 39636130
i changed the output to json thanks for that
now how do i get the value please?
array(1) {
  [0]=>
  object(stdClass)#1 (18) {
    ["label"]=>
    string(27) "/single_event_page.php?id=2"
    ["nb_visits"]=>
    int(1)
    ["nb_hits"]=>
    int(1)
    ["sum_time_spent"]=>
    int(714)
    ["nb_hits_with_time_generation"]=>
    string(1) "1"
    ["min_time_generation"]=>
    float(0.41)
    ["max_time_generation"]=>
    float(0.41)
    ["entry_nb_visits"]=>
    string(1) "1"
    ["entry_nb_actions"]=>
    string(1) "2"
    ["entry_sum_visit_length"]=>
    string(3) "715"
    ["entry_bounce_count"]=>
    string(1) "0"
    ["sum_daily_nb_uniq_visitors"]=>
    int(1)
    ["sum_daily_entry_nb_uniq_visitors"]=>
    int(1)
    ["avg_time_on_page"]=>
    int(714)
    ["bounce_rate"]=>
    string(2) "0%"
    ["exit_rate"]=>
    string(2) "0%"
    ["avg_time_generation"]=>
    float(0.41)
    ["url"]=>
    string(52) "http://completelocal.info/single_event_page.php?id=2"
  }
}

Open in new window


echo "page hits: ".$page_hits['0']['nb_hits'];

Open in new window


does not seam to work
0
 

Author Comment

by:Johnny
ID: 39636146
echo "page hits: ".$page_hits['0'];

Open in new window

returns


Catchable fatal error: Object of class stdClass could not be converted to string in /home/local/public_html/page_hits.php on line 80

so how do i get the nb hits please??
0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636149
That can have a number of reasons, for starters there is no $page_hits variable in your original posted code so can you check that and if it's there now please show your current code?
0
 

Author Comment

by:Johnny
ID: 39636152
<?
//****************************************************************
// Filename..: __.php
// Author....: __
// Date......: mm/dd/yyyy
// Purpose...: __
// SQL.......: server/database/tables/tablename
//****************************************************************
// include("filename.php");

function prettyPrint( $json )
{
    $result = '';
    $level = 0;
    $prev_char = '';
    $in_quotes = false;
    $ends_line_level = NULL;
    $json_length = strlen( $json );

    for( $i = 0; $i < $json_length; $i++ ) {
        $char = $json[$i];
        $new_line_level = NULL;
        $post = "";
        if( $ends_line_level !== NULL ) {
            $new_line_level = $ends_line_level;
            $ends_line_level = NULL;
        }
        if( $char === '"' && $prev_char != '\\' ) {
            $in_quotes = !$in_quotes;
        } else if( ! $in_quotes ) {
            switch( $char ) {
                case '}': case ']':
                    $level--;
                    $ends_line_level = NULL;
                    $new_line_level = $level;
                    break;

                case '{': case '[':
                    $level++;
                case ',':
                    $ends_line_level = $level;
                    break;

                case ':':
                    $post = " ";
                    break;

                case " ": case "\t": case "\n": case "\r":
                    $char = "";
                    $ends_line_level = $new_line_level;
                    $new_line_level = NULL;
                    break;
            }
        }
        if( $new_line_level !== NULL ) {
            $result .= "\n".str_repeat( "\t", $new_line_level );
        }
        $result .= $char.$post;
        $prev_char = $char;
    }

    return $result;
}

$id ="2";
$url = "http:/xxx.xxx/analytics/index.php?module=API&method=Actions.getPageUrl&pageUrl=/single_event_page.php?id=" . $id . "&idSite=1&period=month&date=today&format=json&filter_limit=1&token_auth=0a653dd77008f450c5ca2493f4e9046c";
echo "url info: ".$url;


$json_string = $url;
$jsondata = file_get_contents($json_string);
$page_hits = json_decode($jsondata);
echo "<pre>";
echo prettyPrint($jsondata);
echo "</pre>";
echo "<pre>";
var_dump($page_hits);
echo "</pre>";


echo "<pre>";
var_dump($page_hits['0']['stdClass']);
echo "</pre>";

echo "page hits: ".$page_hits['0']['stdClass']['nb_hits'];







?>

Open in new window

opps sorry forgot that part
0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636157
could you also please post the json string because it could be slightly different than the unserialized php string I have now.
0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636170
As an aside, after unserializing the string you posted before, the following code works:
echo "nb_hits: ".$obj1[0]['nb_hits'];

Open in new window

0
 

Author Comment

by:Johnny
ID: 39636176
[{"label":"\/single_event_page.php?id=2","nb_visits":1,"nb_hits":1,"sum_time_spent":714,"nb_hits_with_time_generation":"1","min_time_generation":0.41,"max_time_generation":0.41,"entry_nb_visits":"1","entry_nb_actions":"2","entry_sum_visit_length":"715","entry_bounce_count":"0","sum_daily_nb_uniq_visitors":1,"sum_daily_entry_nb_uniq_visitors":1,"avg_time_on_page":714,"bounce_rate":"0%","exit_rate":"0%","avg_time_generation":0.41,"url":"http:\/\/xxx.xxx\/single_event_page.php?id=2"}]

Open in new window

0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636187
Ok, I'll have a look. In the mean time, another question...

Your posted code has an extra bit in it:
['stdClass']

Open in new window

Which is not present in the posts where you ask how to get to the info. Is that part of the problem?
0
 

Author Comment

by:Johnny
ID: 39636190

Your posted code has an extra bit in it: ['stdClass']

no idea i get it if i var_dump it
0
 

Author Comment

by:Johnny
ID: 39636195
$json_string = $url;
$jsondata = file_get_contents($json_string);
$page_hits = json_decode($jsondata);

echo "<pre>";
var_dump($page_hits);
echo "</pre>";

Open in new window

outputs
array(1) {
  [0]=>
  object(stdClass)#1 (18) {
    ["label"]=>
    string(27) "/single_event_page.php?id=2"
    ["nb_visits"]=>
    int(1)
    ["nb_hits"]=>
    int(1)
    ["sum_time_spent"]=>
    int(714)
    ["nb_hits_with_time_generation"]=>
    string(1) "1"
    ["min_time_generation"]=>
    float(0.41)
    ["max_time_generation"]=>
    float(0.41)
    ["entry_nb_visits"]=>
    string(1) "1"
    ["entry_nb_actions"]=>
    string(1) "2"
    ["entry_sum_visit_length"]=>
    string(3) "715"
    ["entry_bounce_count"]=>
    string(1) "0"
    ["sum_daily_nb_uniq_visitors"]=>
    int(1)
    ["sum_daily_entry_nb_uniq_visitors"]=>
    int(1)
    ["avg_time_on_page"]=>
    int(714)
    ["bounce_rate"]=>
    string(2) "0%"
    ["exit_rate"]=>
    string(2) "0%"
    ["avg_time_generation"]=>
    float(0.41)
    ["url"]=>
    string(52) "http://xxxxx/single_event_page.php?id=2"
  }
}

Open in new window

0
 
LVL 35

Assisted Solution

by:Robert Schutt
Robert Schutt earned 500 total points
ID: 39636196
This seems to do the trick:
$obj = $page_hits[0];
echo "page hits: ".$obj->nb_hits;

Open in new window

0
 
LVL 35

Expert Comment

by:Robert Schutt
ID: 39636201
quick check to loop over all items:
foreach ($page_hits[0] as $key => $val) {
    echo "$key: $val<br>";
}

Open in new window

You can see the output here: http://schutt.nl/ee/Q_28289970/index2.php
0
 

Author Closing Comment

by:Johnny
ID: 39636210
Thank so much
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Generating table dynamically is the most common issue faced by php developers.... So it seems there is a need of an article that explains the basic concept of generating tables dynamically. It just requires a basic knowledge of html and little maths…
This article discusses how to create an extensible mechanism for linked drop downs.
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question