Get $Post in PHP with Dot in the name

Question

This should be a very basic question in PHP, but I couldn't get a nice solution in web. Please some experts show me with example.

I am trying to read value of 3 textboxes, those names are input_38.1, input_38.2, input_38.3

so my code is echo $_POST['input_38.1']. But it doesn't print the 1st textbox's value. What is the way to get all three textbox's values.

Thanks in advance.

Can you show your whole code including the form and not just snippets? It's hard to identify the problem with the information you supplied. — Ali, Dec 13 '13 at 20:30

score 18 · Accepted Answer · answered Dec 13 '13 at 20:31

18

I am trying to read value of 3 textboxes, those names are input_38.1, input_38.2, input_38.3

Dots and spaces in variable names are converted to underscores. For example <input name="a.b" /> becomes $_REQUEST["a_b"].

So, you'd need to write:

echo $_POST['input_38_1'];

To avoid confusion, it's a good idea not to use dots in your form's name attributes.

answered Dec 13 '13 at 20:31

Amal Murali

1

Well, I didn't know that, you learn something every day. :) Skimming further down that page (which is badly in need of updating) reveals why: our old "friend" `register_globals` would have turned it into an invalid variable name ("For the reason, look at it" as the page rather chattily puts it). Similar restrictions (normally) apply to sessions, such as the one discussed here: http://stackoverflow.com/a/18797380/157957 – IMSoP Dec 13 '13 at 20:37

score 2 · Answer 2 · answered Dec 13 '13 at 20:34

2

You need to change your echo statement:

$_POST['input_38_1'];

I usually stay away from using dots in my variable names.

answered Dec 13 '13 at 20:34

JTFRage

1

Great. Thanks JTFRage. I didn't use DOT. it is a form, so automatically the name comes with dot. when I use '_' for dot positions, it returns the value. thanks . – John Supakin Dec 13 '13 at 20:58

2 Answers2