PHP Form variable and data to & from text file?

Question

I have a form with quite a lot of input fields and checkboxes.

When I submit the form I want to write the form field name and value to a text file.

<input type="text" name="mailHost" value=""/>
<input type="text" name="mailUser" value=""/>
<input type="text" name="mailPass" value=""/>

So with this as an example it would be written to a file as :

mailHost = VALUE
mailUser = VALUE
mailPass = VALUE

For a few form fields it fine doing each on by hand, but is there a function or way to do this for numerous fields ?

And then the same for reading it back ?

Again using the same example above I'd end up with the following when read back :

$mailHost = Value, $mailUser = value etc where the variable name is dynamically created and the value assigned ?

Thanks

vaso123 · Accepted Answer · 2016-06-13 15:22:36Z

2

You can iterate through your $_POST array:

foreach ($_POST as $key => $value) {
   file_put_contents('file.txt', $key . " = " . $value . "\n", FILE_APPEND);
}

NOTE

Unchecked checkboxes will not in the $_POST array.

answered Jun 13, 2016 at 15:22

vaso123

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2 Comments

Thanks - how about reading it back so I get the variable name as the $key ?

Check the file(), expolde() function in PHP manual, and read some about Arrays