PHP foreach Invalid argument supplied when decode json

Asked Jun 07 '19 at 16:45

Active Jun 07 '19 at 16:45

Viewed 13 times

I have to decode json data and insert it to database.

My code:

include 'db.php';
$jsonString = file_get_contents('../question.json');
$data = json_decode($jsonString, true);
$x=1;
foreach ($data as $key1 => $val1) {

And e error : Invalid argument supplied for foreach() in /includes/php/transfer.php on line 6

foreach is my 6th line of code.

I did not get it.. where is a issue?

asked Jun 07 '19 at 16:45

Piotr Mirosz

What does `$data` contain exactly? – aynber Jun 07 '19 at 16:46
you mean question.json? – Piotr Mirosz Jun 07 '19 at 16:46
1

Yes. Either the json is invalid and did not parse correctly, or the decoded json does not contain what you think it does – aynber Jun 07 '19 at 16:49
json data contains lots of data. array inside array etc... – Piotr Mirosz Jun 07 '19 at 16:50
1

check your json is valid or not here https://jsonlint.com/ – A l w a y s S u n n y Jun 07 '19 at 16:52
https://www.php.net/manual/en/function.json-last-error-msg.php – AbraCadaver Jun 07 '19 at 16:53
oo ye.. someone modyfy json data... Error: Parse error on line 64028: – Piotr Mirosz Jun 07 '19 at 16:54
Thanks... i was looking for a error in php code;p – Piotr Mirosz Jun 07 '19 at 16:55
You can check for a null value after json_decode to make sure it decoded properly. If it did not, then you can check for [json_last_error](https://www.php.net/manual/en/function.json-last-error.php)/[json_last_error_msg](https://www.php.net/manual/en/function.json-last-error-msg.php) – aynber Jun 07 '19 at 17:01
when i fix json code in that line everything works. Thanks for a clue guys xD – Piotr Mirosz Jun 07 '19 at 18:06

PHP foreach Invalid argument supplied when decode json

0 Answers0