lundi 19 janvier 2015

JSON file returning null when read from webserver using php.

I have a .json file uploaded on my web server with valid syntax.( http://ift.tt/1xKAE6c).


I want to edit it using php. My php code is as given below:





<?php
$jsonString = file_get_contents('http:/www.isoivit.in/json/Details.json');
preg_replace("/\s+/", " ", $jsonString);
/*$jsonString='{

"events_info":{
"total_events": "3",

"events":[
{
"id": "1",
"name": "JUST F.A.S.T",
"image":"events_image1",
"short_des":"JUST F.A.S.T(Finding an Answer is So Tricky) It is

an interesting and enthusiastic game. You must be so fast in finding the tricky

answers.",
"med_des":" It is an interesting and enthusiastic game.\r\nYou

must be so fast in finding the tricky answers. It has four rounds. In the first 2 rounds

the questionnaire would be funny and enjoyable which includes few audio and video clips

also.\r\nThere will be a rapid fire round based on themes of Riviera and also

interesting tasks to be done in the final round. Exciting rewards will be given after

the clearance of 2nd and 3rd rounds.So gear up people, to experience the boundless fun.

\r\n",
"full_des":"1) It has 4 rounds.\r\n2) In first round 5 questions

will be asked and there will be a time limit. The questions will not be general

knowledge or current affairs based. They will be funny riddles and tricky questions.\r

\n3)In second round questions will be mostly based on audios and visuals. Eg: an audio

of any cartoon character will be played and they have to recognize that cartoon

character.\r\n4)They can use lifelines in first 2 rounds like skip a question, take

audience help.\r\n5) The third round will be a rapid fire round. In this round we will

provide them few topics and they need to choose one of them(those topics will be related

to the theme of Riviera, like Indian cricket ,etc.).The participant will be asked

questions on the topic of his choice.\r\n6)The fourth round will be held on the fourth

day. The participant will be given 3 tasks to perform. They are:\r\n---> They will be

given riddles in different languages other than English and Hindi. They need to know

which language it is and solve the riddle. \r\n--->They need to bring outdated posters

from the whole VIT. Specific time limit will be given. \r\n---> They need to get

autographs or photos of tags of organizers and managers of Riviera.\r\n7)Apart from this

audience also will have their set of interesting questions. Their answers will be taken

into consideration and rewards are given to the lucky persons.\r\n",
"details":" Prize Money :\r\n\r\n1st- Rs.2000\/- \r\n2nd-

Rs.1500\/- \r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs.100 per member\r\nEvent

Coordinators\r\n\r\nN.Sai Mounika \r\nmouni123.nekkalapudi@gmail.com \r\n "
},
{
"id": "2",
"name": "Speeling Bee",
"image":"events_image2",
"short_des":"Spelling Bee is a competition in which contestants

are asked to spell a broad selection of words, usually with a varying degree of

difficulty.",
"med_des":" Spelling Bee is a competition in which contestants

are asked to spell a broad selection of words, usually with a varying degree of

difficulty.\r\nIt has three rounds.\r\nFirst round- \r\nIn first round, audio of 25

words is played and participants need to write them on paper.Based on the score top ten

people are screened. \r\n\r\nSecond round- \r\nIn second round, 5 questions are asked to

each 10 participants. \r\n\r\nThird round- \r\nThird or final round is a buzzer round.10

questions are asked. \r\nThere are negative marks for wrong answers in this round. \r

\nBased on scores of 2nd and third round,winner and runner-up are decided.\r\n",
"full_des":"",
"details":" \r\nPrize Money :\r\n\r\n1st- Rs.2000\/- \r\n2nd-

Rs.1500\/- \r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs.100 per member\r\nEvent

Coordinators\r\n\r\nPranay Yenigandla \r\npranay.pranu111@gmail.com\r\nShreyash Saurabh

\r\n "
},

{
"id": "3",
"name": "Be Crazy",
"image":"events_image3",
"short_des":" Do you wanna do something crazy? !!! Here is our

event \"Be Crazy\"-Crazyness in peaks.",
"med_des":" Do you wanna do something crazy? !!! Here is our

event \"Be Crazy\"-Crazyness in peaks.\r\nDo you think that you are a bit crazy among

your friends..!!!Here is our event for this RIVEIRA2015.\r\nIn this event you are given

some crazy tasks to perform with time limit in levels of 1,2 &3.like \"Shot A Celebrete

-in this event u have to get a selfie with organisers and famous personalities of VIT

\"\r\n",
"full_des":" We have 3 rounds in this event.\r\n1st round has 10

simpler tasks.\r\nExamples:\r\n>>Forming towers with paper cups\r\n>>Lemon spoon race\r

\n>>Walk in grills without touching\r\n>>Run the race with legs tied together\r\n>>Lift

the rod holding from edge\r\n>>Skipping race\r\n2nd round has 5 tasks.\r\nExamples:\r

\n>>Sac race\r\n>>Hold the wet brick with two fingers\r\n>>Get a photo with organizers

of RIVEIRA (10)\r\n3rd round has 2-3 tasks like\r\nExamples:\r\n>>catch the paper

between fingers when it is released\r\nEach task is given its own credits. The time

taken to complete every task is noted for every team. Teams which are leading in that

task in terms of time will get credits. At the end of first round depending on the

credits they will be qualified to the second round. In the similar manner people will be

selected to the third round also. winners are announced after the third round depending

on their credits.\r\nWe will select top 20 teams from round 1 that will qualify to round

2.\r\nWe will select top10 teams from round 2 that will qualify round 3.\r\nWe will

decide qualifiers for each round on basis of points and time taken to complete a task.

\r\n",
"details":" Prize Money :\r\n\r\n1st- Rs.3000\/-\r\n2nd-

Rs.2000\/-\r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs 150\/- per team\r\nNo of

participants per team:\r\n\r\n5(Maximum)\r\nEvent Coordinators\r\n \r\nK. Jaswanth

Kumar\r\njaswanthjaan@gmail.com\r\nAnkush Saini\r\nankushsaini88@gmail.com\r\n"
}
]
},
"archives_info":{
"total_events": "2",

"events":[
{
"id": "1",
"name": "Explore Matlab",
"image":"archives_image1",
"short_des":" It is a five day free workshop.\r\nMATLAB (matrix

laboratory) is a multi-paradigm numerical computing environment and fourth-generation

programming language. Developed by MathWorks, MATLAB allows matrix manipulations,

plotting of functions and data, implementation of algorithms, creation of user

interfaces, and interfacing with programs written in other languages, including C, C++,

Java, Fortran and Python.\r\nThe workshop aims to develop the vision and skills

MATLAB.The workshop is one of the huge success with approximately 400 students attending

the workshop every year .\r\n",
"med_des":"",
"full_des":"",
"details":"1) Basics of MATLAB.\r\n2) MATLAB Simulink.\r\n3)

Fundamentals of Signals & Systems using MATLAB.\r\n4) Probability & Random Processes

using MATLAB.\r\n5) Analysis & Design of Control System using MATLAB.\r\n6) Modelling &

Simulation of Signal Processing Application.\r\n7) Artificial Neural Network using

MATLAB.\r\n"
},
{
"id": "2",
"name": "See The C",
"image":"archives_image2",
"short_des":" It is a free workshop for all the students to

develop their programming skills used in the field of Computer Science. C is the most

widely used programming languages of all time and C compilers are available for the

majority of available computer architecture and operating systems.\r\nThis workshop is

to help first years to learn a new language in which most of them find difficulty to

learn.\r\n",
"med_des":"",
"full_des":"",
"details":"1) C Language is a general-purpose programming

language .C has facilities for structured programming and allows lexical variable scope

and recursion.\r\n2) Its design provides constructs that map efficiently to typical

machine instructions and therefore it has found lasting use in applications that had

formerly been coded in assembly language.\r\n3) The C programming language uses

libraries as its primary method of extension. In C, a library is a set of functions

contained within a single \"archive\" file. Each library typically has a header file,

which contains the prototypes of the functions contained within the library that may be

used by a program, and declarations of special data types and macro symbols used with

these functions.\r\n4) C has been used successfully for every type of programming

problem imaginable from operating systems to spreadsheets to expert systems - and

efficient compilers are available for machines ranging in power from the Apple Macintosh

to the Cray supercomputers.\r\n5) Tools have been created to help C programmers avoid

some of the problems inherent in the language, such as statements with undefined

behavior or statements that are not a good practice because they are likely to result in

unintended behavior or run-time errors.\r\n6) Despite its low-level capabilities, the

language was designed to encourage cross-platform programming. A standards-compliant and

portably written C program can be compiled for a very wide variety of computer platforms

and operating systems with few changes to its source code\r\n7) With regards to personal

computers Microsoft C for IBM (or clones) PC\'s. and Borlands C are seen to be the two

most commonly used systems. However, the latest version of Microsoft C is now considered

to be the most powerful and efficient C compiler for personal computers.\r\n"
}
]
},
"riviera_info":{
"total_events": "3",

"events":[
{
"id": "1",
"name": "JUST F.A.S.T",
"image":"riviera_image1",
"short_des":"JUST F.A.S.T(Finding an Answer is So Tricky) It is

an interesting and enthusiastic game. You must be so fast in finding the tricky

answers.",
"med_des":" It is an interesting and enthusiastic game.\r\nYou

must be so fast in finding the tricky answers. It has four rounds. In the first 2 rounds

the questionnaire would be funny and enjoyable which includes few audio and video clips

also.\r\nThere will be a rapid fire round based on themes of Riviera and also

interesting tasks to be done in the final round. Exciting rewards will be given after

the clearance of 2nd and 3rd rounds.So gear up people, to experience the boundless fun.

\r\n",
"full_des":"1) It has 4 rounds.\r\n2) In first round 5 questions

will be asked and there will be a time limit. The questions will not be general

knowledge or current affairs based. They will be funny riddles and tricky questions.\r

\n3)In second round questions will be mostly based on audios and visuals. Eg: an audio

of any cartoon character will be played and they have to recognize that cartoon

character.\r\n4)They can use lifelines in first 2 rounds like skip a question, take

audience help.\r\n5) The third round will be a rapid fire round. In this round we will

provide them few topics and they need to choose one of them(those topics will be related

to the theme of Riviera, like Indian cricket ,etc.).The participant will be asked

questions on the topic of his choice.\r\n6)The fourth round will be held on the fourth

day. The participant will be given 3 tasks to perform. They are:\r\n---> They will be

given riddles in different languages other than English and Hindi. They need to know

which language it is and solve the riddle. \r\n--->They need to bring outdated posters

from the whole VIT. Specific time limit will be given. \r\n---> They need to get

autographs or photos of tags of organizers and managers of Riviera.\r\n7)Apart from this

audience also will have their set of interesting questions. Their answers will be taken

into consideration and rewards are given to the lucky persons.\r\n",
"details":" Prize Money :\r\n\r\n1st- Rs.2000\/- \r\n2nd-

Rs.1500\/- \r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs.100 per member\r\nEvent

Coordinators\r\n\r\nN.Sai Mounika \r\nmouni123.nekkalapudi@gmail.com \r\n "
},
{
"id": "2",
"name": "Speeling Bee",
"image":"riviera_image2",
"short_des":"Spelling Bee is a competition in which contestants

are asked to spell a broad selection of words, usually with a varying degree of

difficulty.",
"med_des":" Spelling Bee is a competition in which contestants

are asked to spell a broad selection of words, usually with a varying degree of

difficulty.\r\nIt has three rounds.\r\nFirst round- \r\nIn first round, audio of 25

words is played and participants need to write them on paper.Based on the score top ten

people are screened. \r\n\r\nSecond round- \r\nIn second round, 5 questions are asked to

each 10 participants. \r\n\r\nThird round- \r\nThird or final round is a buzzer round.10

questions are asked. \r\nThere are negative marks for wrong answers in this round. \r

\nBased on scores of 2nd and third round,winner and runner-up are decided.\r\n",
"full_des":"",
"details":" \r\nPrize Money :\r\n\r\n1st- Rs.2000\/- \r\n2nd-

Rs.1500\/- \r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs.100 per member\r\nEvent

Coordinators\r\n\r\nPranay Yenigandla \r\npranay.pranu111@gmail.com\r\nShreyash Saurabh

\r\n "
},

{
"id": "3",
"name": "Be Crazy",
"image":"riviera_image3",
"short_des":" Do you wanna do something crazy? !!! Here is our

event \"Be Crazy\"-Crazyness in peaks.",
"med_des":" Do you wanna do something crazy? !!! Here is our

event \"Be Crazy\"-Crazyness in peaks.\r\nDo you think that you are a bit crazy among

your friends..!!!Here is our event for this RIVEIRA2015.\r\nIn this event you are given

some crazy tasks to perform with time limit in levels of 1,2 &3.like \"Shot A Celebrete

-in this event u have to get a selfie with organisers and famous personalities of VIT

\"\r\n",
"full_des":" We have 3 rounds in this event.\r\n1st round has 10

simpler tasks.\r\nExamples:\r\n>>Forming towers with paper cups\r\n>>Lemon spoon race\r

\n>>Walk in grills without touching\r\n>>Run the race with legs tied together\r\n>>Lift

the rod holding from edge\r\n>>Skipping race\r\n2nd round has 5 tasks.\r\nExamples:\r

\n>>Sac race\r\n>>Hold the wet brick with two fingers\r\n>>Get a photo with organizers

of RIVEIRA (10)\r\n3rd round has 2-3 tasks like\r\nExamples:\r\n>>catch the paper

between fingers when it is released\r\nEach task is given its own credits. The time

taken to complete every task is noted for every team. Teams which are leading in that

task in terms of time will get credits. At the end of first round depending on the

credits they will be qualified to the second round. In the similar manner people will be

selected to the third round also. winners are announced after the third round depending

on their credits.\r\nWe will select top 20 teams from round 1 that will qualify to round

2.\r\nWe will select top10 teams from round 2 that will qualify round 3.\r\nWe will

decide qualifiers for each round on basis of points and time taken to complete a task.

\r\n",
"details":" Prize Money :\r\n\r\n1st- Rs.3000\/-\r\n2nd-

Rs.2000\/-\r\n3rd- Rs.1000\/-\r\nRegistration fee:\r\n\r\nRs 150\/- per team\r\nNo of

participants per team:\r\n\r\n5(Maximum)\r\nEvent Coordinators\r\n \r\nK. Jaswanth

Kumar\r\njaswanthjaan@gmail.com\r\nAnkush Saini\r\nankushsaini88@gmail.com\r\n"
}
]
}

}


';*/
echo $jsonString;
echo '...............................................';
$data=json_decode($jsonString,true);

var_dump($data);
//$data1=json_decode($data['events_info'],true);
//var_dump($data1);
$var1= $data['events_info'];
$var2= $var1['events'];
$var3=$var2[0];
echo $var3['name'];
echo json_last_error();?>



In the comment section of my php script is the whole json string copied from web. The problem I am facing is that when I use json_decode on the string returned by file_get_contents('http:/www.isoivit.in/json/Details.json') it returns NULL, while when I use json_decode on the string which is copied from same json file I get a valid output what I desire. This means that my php code is able to read json file from web but unable to decode it. I get a json last error 4(SYNTAX ERROR). Though I have checked for all errors and its running feasibly on my android application. Please help.


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