php $_POST array empty upon form submission

I could solve the problem using enctype="application/x-www-form-urlencoded" as the default is "text/plain". When you check in $DATA the seperator is a space for "text/plain" and a special character for the "urlencoded".

Kind regards Frank

In my case, when posting from HTTP to HTTPS, the $_POST comes empty. The problem was, that the form had an action like this //example.com When I fixed the URL to https://example.com, the problem disappeared.

same issue here!

i was trying to connect to my local server code via post request in postman, and this problem wasted my time alot!

for anyone who uses local project (e.g. postman): use your IPv4 address (type ipconfig in cmd) instead of the "localhost" keyword. in my case:

before:

localhost/app/login

after:

192.168.1.101/app/login

Make sure that the name property of each field is defined.

This create you an empty POST on PHP

<input type="text" id="Phone">

But, this will work

<input type="text" name="Phone" id="Phone">

I had the same problem. The problem was .htaccess.

I have a HTTPS rewrite rule and was sending the post requests to http:// instead of https://. The post request cleared due to redirect.

I know this is old, but wanted to share my solution.

In my case the issue was in my .htaccess as I added variables to raise my PHP's max upload limit. My code was like this:

php_value post_max_size 50MB
php_value upload_max_filesize 50MB

Later I notice that the values should like xxM not xxMB and when I changed it to:

php_value post_max_size 50M
php_value upload_max_filesize 50M

now my $_POST returned the data as normal before. Hope this helps someone in the future.

I just spent hours to fix a similar issue. The problem in my case, was the the

max_input_vars = "1000"

by default, in the php.ini. I had a really huge form without uploads. php.ini is set to upload_max_filesize = "100M" and post_max_size = "108M" and it was surely not the issue in my case. PHP behavior is the same for max_input_vars when it exceeds 1000 variables in the form. It returns and empty _POST array. I wish I could have found that one hours, and hours ago.

Another simple reason for an empty POST array can be caused by not closing a form with </form> and then adding a second <form>...</form>. When the second form is submitted the POST array will be empty.

Make sure you use name="your_variable_name" in input tag.

I mistakenly use id="your_variable_name".

I spent much time to catch the bug.

I run into the same issue also when I migrated to new server. setting the value for post_max_size in the php.ini file fixed my issue.

OK, I thought that I should put my case here .... I was getting the post array empty in specific cases .. The form works well, but some times users complain that they hit submit button, and nothing happens ..... After digging for a while, I discovered that my hosting company has a security module that checks users inputs and clears the whole post array (not only the malicious data) if it discovers so. In my example, a math teacher was trying to enter the equation: dy + dx + 0 = 0; and data was wiped completely.

To fix this, I just advise him now to enter the data in the text area as dy + dx + 0 = zero, and now it works .... This can save someone some time ..