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how to generate new row on each row button click

Newbie
  
Join Date: Sep 2008
Posts: 5
#1: Sep 2 '08
i want to generate a new row having text field,1 add button and 1 remove button..each time when we press add button of current row same way a new row should be generated with same functinality of its add button..
similarly same should happen with remove button that is when we click on remove button the same row should be deleted of which remove button is pressed..

Dormilich's Avatar
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Location: Leipzig, Germany
Posts: 3,656
#2: Sep 2 '08

re: how to generate new row on each row button click

Usually I would do that in JavaScript. Nevertheless it's possible in PHP too. I'm looking forward to your code, so we can discuss problems (if there are any).

kind regards
Newbie
  
Join Date: Sep 2008
Posts: 5
#3: Sep 2 '08

re: how to generate new row on each row button click

Quote:

Originally Posted by Dormilich

Usually I would do that in JavaScript. Nevertheless it's possible in PHP too. I'm looking forward to your code, so we can discuss problems (if there are any).

kind regards



dear sir i am novice in php .
I need this done in php exclusively.
As u were asking i am sending my code to u below:
Expand|Select|Wrap|Line Numbers
  1. <html>
  2. <head>
  3. <title>
  4. </title>
  5. </head>
  6. <body>
  7. <form name="form1" method="POST" action="">
  8. <table>
  9.  <tr>
  10. <td><input type="text" name="txt" align="center"> </td>
  11. <td><input type="submit" name="btnadd" id="btnadd" value="ADD"> </td>
  12. <td><input type="submit" name="btnremove" id="btnremove" value="REMOVE"> </td>
  13. <td><input type="hidden" name="hidden"  value="abc<?PHP ($j)?>"> </td>
  14. </tr></table>
  15.  
  16. <?PHP
  17.  if($_POST["btnadd"] == "ADD")
  18. {
  19. $j=0;
  20. for($i=0;$i<$j+1;$i++)
  21. {
  22.  ?>
  23. <table>
  24. <tr>
  25. <td><input type="text" name="txt" align="center"> </td>
  26. <td><input type="submit" name="btnadd" id="btnadd" value="ADD"> </td>
  27. <td><input type="submit" name="btnremove" id="btnremove" value="REMOVE"> </td>
  28. <td><input type="hidden" name="hidden"  value="$j ;"> </td>
  29. </tr>
  30. </table>
  31. <?PHP 
  32. }
  33. }
  34. ?>
  35.  
  36. </form>
  37.  
  38. </body>
  39. </html>
  40.  
Dormilich's Avatar
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Join Date: Aug 2008
Location: Leipzig, Germany
Posts: 3,656
#4: Sep 2 '08

re: how to generate new row on each row button click

It looks (please correct me if I'm wrong) as if you want an additional input field added on pressing the 'ADD' button. and you don't want to retain the input (a page reload usually clears all fields).

a simplified version of your code could look like this
Expand|Select|Wrap|Line Numbers
  1. <html>
  2.   <head>
  3.     <title></title>
  4.     <style type="text/css">
  5. input {
  6.   display: block;   /* makes one <input> per line */
  7. }
  8.     </style>
  9.   </head>
  10. <?php
  11. if($_POST["btnadd"] == "ADD") {
  12. // add 1 to the row counter
  13.     if (isset($_POST['count'])) $count = $_POST['count'] + 1;
  14. // set value for first load
  15.     else $count = 1;
  16. }
  17. if($_POST["btnremove"] == "REMOVE") {
  18. // decrement the row counter
  19.     $count = $_POST['count'] - 1;
  20. // set minimum row number
  21.     if ($count < 1) $count = 1;
  22. }
  23. ?>
  24.   <body>
  25. <!-- call same file on submit -->
  26.     <form name="form1" method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>">
  27.  <?php 
  28. // print $count rows
  29. for ($i=1; $i<=$count; $i++) {
  30. echo '      <input type="text" name="txt" align="center">';
  31. }
  32. ?>
  33.  <!-- you only need one set of buttons and only one counter for this script
  34.       because every button would do the same -->
  35.       <input type="submit" name="btnadd" id="btnadd" value="ADD">
  36.       <input type="submit" name="btnremove" id="btnremove" value="REMOVE">
  37.       <input type="hidden" name="count" value="<?php echo $count; ?>">
  38.     </form>
  39.   </body>
  40. </html>
regards

PS: please use [code] tags when posting code
Newbie
  
Join Date: Sep 2008
Posts: 5
#5: Sep 4 '08

re: how to generate new row on each row button click

thnk u sir for ur help..ur coding is helped me to solve my problex..
thx
Dormilich's Avatar
Moderator
  
Join Date: Aug 2008
Location: Leipzig, Germany
Posts: 3,656
#6: Sep 4 '08

re: how to generate new row on each row button click

I'm glad that I could help you.

kind regards
Newbie
  
Join Date: Sep 2008
Posts: 5
#7: Sep 6 '08

re: how to generate new row on each row button click

[
Expand|Select|Wrap|Line Numbers
  1. <html>
  2.   <head>
  3.     <title></title>
  4.     <style type="text/css">
  5. input {
  6.   display: block;   /* makes one <input> per line */
  7. }
  8.     </style>
  9.   </head>
  10. <?php
  11. if($_POST["btnadd"] == "ADD") {
  12. // add 1 to the row counter
  13.     if (isset($_POST['count'])) $count = $_POST['count'] + 1;
  14. // set value for first load
  15.     else $count = 1;
  16. }
  17. if($_POST["btnremove"] == "REMOVE") {
  18. // decrement the row counter
  19.     $count = $_POST['count'] - 1;
  20. // set minimum row number
  21.     if ($count < 1) $count = 1;
  22. }
  23. ?>
  24.   <body>
  25. <!-- call same file on submit -->
  26.     <form name="form1" method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>">
  27.  <?php 
  28. // print $count rows
  29. for ($i=1; $i<=$count; $i++) {
  30. echo '      <input type="text" name="txt" align="center">';
  31. }
  32. ?>
  33.  <!-- you only need one set of buttons and only one counter for this script
  34.       because every button would do the same -->
  35.       <input type="submit" name="btnadd" id="btnadd" value="ADD">
  36.       <input type="submit" name="btnremove" id="btnremove" value="REMOVE">
  37.       <input type="hidden" name="count" value="<?php echo $count; ?>">
  38.     </form>
  39.   </body>
  40. </html>
sir the coding u send me is exactly matches to suituation i want but but i want that particular row deleted up which row's remove button is clickd.and i want this all thing exclusively in php..plz hepl me sir ..

Thnk you.......
Dormilich's Avatar
Moderator
  
Join Date: Aug 2008
Location: Leipzig, Germany
Posts: 3,656
#8: Sep 6 '08

re: how to generate new row on each row button click

does the input fields contain any data? if not it doesn't matter. In the other case you have to retain the data anyhow (maybe something like <input name="line[]">). then you have to apply somehow a line number to the button to tell which values to drop. I have to think about this problem (this wouldn't be a problem in JS). still you need only one add-button.
Newbie
  
Join Date: Sep 2008
Posts: 5
#9: Sep 8 '08

re: how to generate new row on each row button click

sir i only need this in php..to drop particular row whose remove button is being clicked
Dormilich's Avatar
Moderator
  
Join Date: Aug 2008
Location: Leipzig, Germany
Posts: 3,656
#10: Sep 8 '08

re: how to generate new row on each row button click

general idea: name every submit button uniquely and check, which row this button belongs to.
[PHP]// get the 'number' of the pressed button
foreach (array_keys($_POST) as $key) {
if (preg_match('@^submit([0-9]+)$@', $key, $match) == 1) {
$no = $match[1];
$count--;
}
}

// remove value
unset($_POST['text'][$no]);
// re-index array
$retain = array_values($_POST['text']);

for ($i=0; $i<$count; $i++) {
echo ' <input type="text" name="text[]" value="' . $retain[$i] . '" />
<input type="submit" name="submit' . $i . '" value="remove" />
<br />';
}
[/PHP]
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