Weird character at start of json content type
- by Nek
Hi, I'm trying to return json content read from MySQL server. This is supposed to be easy but, there is a 'weird' character that keeps appearing at start of the content.
I have two pages for returning content:
kcb433.sytes.net/as/test.php?json=true&limit=6&input=d
this test.php is from a script written by Timothy Groves, which converts an array to json output
http://kcb433.sytes.net/k.php?k=4
this one is supposed to do the same
I tried to validate it here jsonformatter.curiousconcept.com but just page 1 gets validated, page 2 says that it does not contain JSON data.
If accessed directly both pages has no problems. Then what is the difference, why both don't get validated?
Then I found this page jsonformat.com and tried the same thing. Page 1 was ok and page 2 wasn't but, surprisingly the data could be read. At a glance,
{"a":"b"}
may look good but there is a character in front.
According to a hex editor online, this is the value of the string above (instead of 9 values, there are 10):
-- 7B 22 61 22 3A 22 62 22 7D
The code to echo json in page 2 is:
header("Content-Type: application/json");
echo "{\"a\":\"b\"}";
