Echo an $_POST in PHP

Question

How can I print a $_POST?

Example:

echo $_POST['data'];

This returns nothing...

If data's there, it should show up when you do var_dump or print_r, like I described below. Could you show us the output of that? Or describe how you're getting data into POST (web form, HTTP tool like Firebug or Fiddler, etc.)? — Tim Ridgely, Jun 09 '10 at 00:02
Try with _GET['data'] instead and pass a ?data=HelloWorld in your URL. Does that work? — kamasheto, Jun 09 '10 at 00:02
Get works but problem solved, thanks everyone for your time/help :) — Victor Bjelkholm, Jun 09 '10 at 00:14
I would also recommend that you develop with `E_ALL` error reporting so you get a notice when a variable is not defined. — Lotus Notes, Jun 09 '10 at 00:33

score 21 · Accepted Answer · edited Jan 13 '19 at 17:26

21

You can also wrap your code with <pre> tags to make your array prints out nicer instead of just 1 continuous line. A trick that was shown by a member on this site.

<pre>
<?php var_dump($_POST); ?>
</pre>

edited Jan 13 '19 at 17:26

Ronan Boiteau

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answered Jun 08 '10 at 23:55

Jamex

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score 8 · Answer 2 · answered Jun 08 '10 at 23:48

8

Your code is correct.

You can use either:

var_dump($_POST);

or

print_r($_POST);

to print out the entire POST array for debugging.

answered Jun 08 '10 at 23:48

Tim Ridgely

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score 2 · Answer 3 · answered Jun 08 '10 at 23:50

2

You can only show the values of keys that exist. array_keys() returns an array containing the keys that exist in the array. If there is no output for a key despite the fact that the key exists then the array may contain an empty value for that key.

answered Jun 08 '10 at 23:50

Ignacio Vazquez-Abrams

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... Could I write an example of how to call a function? Is that what you're asking? – Ignacio Vazquez-Abrams Jun 08 '10 at 23:57

Echo an $_POST in PHP

3 Answers3

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