Retrieve information from $_POST

[dhope]

Hi,

 

Is it possible to retrieve all the information from a posted value without knowing the input field?

 

My page is taking information from a database and then creates a page with checkboxs so that people can select certain fields. There are 1300 fields in the database so I don't know what fields will be submitted when a person saves the page,  is there a simple way to check what fields have been submitted without writing a check for each checkbox?

 

I hope this makes sense, thanks in advance for any help.

[MatthewJ]

Checkbox data should be in an array within post.

 

<input type='checkbox' name='checkboxes[]' value='value1' />
<input type='checkbox' name='checkboxes[]' value='value2' />
<input type='checkbox' name='checkboxes[]' value='value3' />

 

Then you can just loop through the $_POST['checkboxes'] array

 

From a usability standpoint... I'm not sure I would want to fill out a form with 1300 checkboxes

[TOA]

This might be what you're looking for

 

foreach ($_POST as $key => $value) {
   if (isset($value)) {
       do something with the input
   }
}

 

It checks all posted values and looks to see if it's set. If it is it does something with the value.

If I'm not understanding correctly, my apologies.

 

  Quote

From a usability standpoint... I'm not sure I would want to fill out a form with 1300 checkboxes

 

Totally agree

[dhope]

The checkboxs are split up into sections making it much easier to use

 

I have tried the examples posted but it only seems to print out the last checkbox to be selected, any ideas?

 

CODE:

 

if(isset($_GET['update_towns'])) {

 

foreach ($_GET as $key => $value) {

 

print "$value";

 

}

}

[TOA]

Well that code right there says:

 

Only loop through the GET array if update_towns isset

 

Is that what you want it to do? If update_towns is not set, the script will do nothing

 

[dhope]

Yes, I have set a hidden field to update_towns so that I can check if the form has been submitted, i'm not sure if there is a better way of doing this.

 

The foreach doesn't seem to loop through it just seems to print out the final checkbox that was selected.

[Pikachu2000]

Getting an accurate answer to this without posting the code that generates the form may prove difficult.