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PHP Tutorials - Supporting Multiple Submit Buttons

By: FYICenter.com

(Continued from previous topic...)

How To Support Multiple Submit Buttons?

Sometimes, you may need to give visitors multiple submit buttons on a single form to allow them to submit the form for different purposes. For example, when you show your customer a purchase order in a Web form, you may give your customer 3 submit buttons as "Save", "Copy", and "Delete". You can do this by adding "name" and "value" attributes to the <INPUT TYPE=submit ...> tags to differentiate the buttons. The following PHP script is a modified version of submit_comments.php with 3 submit buttons:

<?php
  $comment = 'I want to say: "It\'s a good site! :->"';
  $comment = htmlspecialchars($comment);
  print("<html><form action=processing_forms.php method=post>");
  print("<table><tr><td colspan=2>Please enter and submit your"
    ." comments about FYICenter.com:</td></tr>");
  print("<tr><td>Your Name:</td>"
    ."<td><input type=text name=name></td></tr>\n");
  print("<tr><td>Comments:</td>"
    ."<td><input type=text name=comment value=\"$comment\" size=40>"
    ."</td></tr>\n");
  print("<tr><td colspan=2>"
    .'<input type=submit name=submit value="Submit now">'
    .'<input type=submit name=submit value="Save only">'
    .'<input type=submit name=submit value="Cancel">'
    ."<td></tr></table>\n");
  print("</form></html>\n");
?>

If you view this PHP page, you will see 3 buttons. If submit the form by clicking the "Save only" button, you will get something like this:

Number of values: 3
  name = Peter
  comment = I want to say: "It's a good site! :->"
  submit = Save only

Obviously, different code logics should be written based on the received value of the "submit" field.

(Continued on next topic...)

  1. How To Create a Web Form?
  2. What Are Form Input HTML Tags?
  3. How To Generate a Form?
  4. Where Is the Submitted Form Data Stored?
  5. How To Retrieve the Submitted Form Data?
  6. What Happens If an Expected Input Field Was Not Submitted?
  7. How To Avoid the Undefined Index Error?
  8. How To List All Values of Submitted Fields?
  9. What Are Input Values of SELECT Tags?
  10. How To Specify Input Values for Radio Buttons?
  11. How To Specify Input Values for Checkboxes?
  12. How To Retrieve Input Values for Checkboxes Properly?
  13. How To Supply Default Values for Text Fields?
  14. How To Remove Slashes on Submitted Input Values?
  15. How To Support Multiple Submit Buttons?
  16. How To Support Hidden Form Fields?
  17. How To Generate and Process a Form with the Same Script?
  18. How To Submit Values without Using a Form?
  19. How To Retrieve the Original Query String?
  20. How To Protect Special Characters in Query String?
  21. How To Support Multiple-Page Forms?

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