post JSON object to PHP

Question

so i have a gigantic javascript object that i want to pass it on to PHP.

What i'm trying is: - use stringify to put it as the value of a hidden field - hit submit

In PHP, if I

echo $_POST['hidden']

the JSON string seems perfect, but when i use

json_decode($_POST['hidden'])

i get NULL

If i use jQuery's

$.post

, i get exactly the desired result: i am able to use json_decode on it.

Can someone explain to me what i'm doing wrong? thanks

Try this: stackoverflow.com/questions/689185/json-decode-returns-null-php — Uladzimir Pasvistselik
– Uladzimir Pasvistselik, Commented Nov 21, 2011 at 12:43

Moe Sweet · Accepted Answer · 2011-11-21 12:42:49Z

1

Your JSON string might contain some extra slashes. Try strip_slashes before json_decode.

answered Nov 21, 2011 at 12:42

Moe Sweet

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Eugene · Accepted Answer · 2011-11-21 12:43:39Z

1

Maybe you need to do urldecode? http://php.net/manual/en/function.urldecode.php

answered Nov 21, 2011 at 12:43

Eugene

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Comments

shenhengbin · Accepted Answer · 2011-11-21 13:16:05Z

0

here is same error types

//wrong
$str1 = <<<EOD
{“dealList”:”\r\n\t”}
EOD;

//right
$str2 = <<<EOD
{“dealList”:”\\r\\n\\t”}
EOD;

//wrong
$str3 = <<<EOD
{‘dealList’:'\r\n’}
EOD;

//wrong
$str4 = <<<EOD
{‘dealList’:'\\r\\n’}
EOD;

//wrong
$str5 = “{‘dealList’:'\r\n’}”;

//wrong
$str6 = “{‘dealList’:'\\r\\n’}”;

//right
$str7 = ‘{“dealList”:”\r\n”}’;

$c = json_decode($str1);

answered Nov 21, 2011 at 13:16

shenhengbin

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1 Comment

André Alçada Padez Over a year ago

ok, that seems reasonable. but if i'm using (JSON2.js)JSON.stringify(object) on the javascript side, i post that string through a hidden form field, how can i control it so i can get the correct string?

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