Saving data in a form after it's been submitted

Posted on 2010-01-11
Medium Priority
Last Modified: 2012-05-08
I built a simple form in HTML and I am using PHP to collect the data and then write it to a text file.  After clicking the submit button, all of the fields are cleared.  Is there a way to change this so that after the submit button is pressed, the fields still remain populated with their data?
Question by:TacomaVA
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LVL 34

Expert Comment

by:Beverley Portlock
ID: 26287236
OK, assuming that the form resides in a .php script you do this


if script submitted form then
    capture fields
    writ to file

HTML form


So the trick is that the form's action is the page it resides in. So we would have the following


// Check for SUBMIT button being pressed
if ( isset( $_POST['submit'] ) ) {

     // Collect variables from form. These are the "name" attributes
     // in the HTML input fields
     $value1 = $_POST['field1'];
     $value2 = $_POST['field2'];

     // Write to file
     $fp = fopen("myfile.txt", "w");
     fputs( $fp, "value 1 is $value1 and value2 is $value2");
     fclose( $fp );


         .... etc

    <form action='<?php echo $_SERVER['PHP_SELF']; ?>' method='post'>

         .. other stuff
         <input name='field1' type='text' value='' />
         <input name='field2' type='text' value='' />

         <input name='submit' type='submit' value='Process my form' />


         .... etc

There is a bit more to it than that but that is the basics. Hopefuuly you can adapt it easily enough.
LVL 82

Accepted Solution

leakim971 earned 1000 total points
ID: 26287268
hello TacomaVA,

Check this :

  echo "<form id="myform" method='POST' action='" . $_SERVER["PHP_SELF"] . "'>";
  $t = isset($_POST[atext])?:$_POST[atext]:"";
  echo "<INPUT type='text' value='" + $t + "' id='atext' name='atext' />";

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LVL 82

Expert Comment

ID: 26288327
Thanks for the points! happy new year!

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