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help with delete multiple rows in mysql using checkboxes

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help with delete multiple rows in mysql using checkboxes

 
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  #1
Aug 13th, 2008
please help i don't know how to delete multiple rows in mysql using checkboxes, because it seems the delete doesn't seem to work.
here's the code:

php Syntax (Toggle Plain Text) 
  1. <?php
  2. $host="localhost"; // Host name
  3. $username=""; // Mysql username
  4. $password=""; // Mysql password
  5. $db_name="test"; // Database name
  6. $tbl_name="test_mysql"; // Table name
  7.  
  8. // Connect to server and select databse.
  9. mysql_connect("$host", "$username", "$password")or die("cannot connect");
  10. mysql_select_db("$db_name")or die("cannot select DB");
  11.  
  12. $sql="SELECT * FROM $tbl_name";
  13. $result=mysql_query($sql);
  14.  
  15. $count=mysql_num_rows($result);
  16.  
  17. ?>
  18. <table width="400" border="0" cellspacing="1" cellpadding="0">
  19. <tr>
  20. <td><form name="form1" method="post" action="">
  21. <table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
  22. <tr>
  23. <td bgcolor="#FFFFFF">&nbsp;</td>
  24. <td colspan="4" bgcolor="#FFFFFF"><strong>Delete multiple rows in mysql</strong> </td>
  25. </tr>
  26. <tr>
  27. <td align="center" bgcolor="#FFFFFF">#</td>
  28. <td align="center" bgcolor="#FFFFFF"><strong>Id</strong></td>
  29. <td align="center" bgcolor="#FFFFFF"><strong>Name</strong></td>
  30. <td align="center" bgcolor="#FFFFFF"><strong>Lastname</strong></td>
  31. <td align="center" bgcolor="#FFFFFF"><strong>Email</strong></td>
  32. </tr>
  33. <?php
  34. while($rows=mysql_fetch_array($result)){
  35. ?>
  36. <tr>
  37. <td align="center" bgcolor="#FFFFFF"><input name="checkbox[]" type="checkbox" id="checkbox[]" value="<? echo $rows['id']; ?>"></td>
  38. <td bgcolor="#FFFFFF"><? echo $rows['id']; ?></td>
  39. <td bgcolor="#FFFFFF"><? echo $rows['name']; ?></td>
  40. <td bgcolor="#FFFFFF"><? echo $rows['lastname']; ?></td>
  41. <td bgcolor="#FFFFFF"><? echo $rows['email']; ?></td>
  42. </tr>
  43. <?php
  44. }
  45. ?>
  46. <tr>
  47. <td colspan="5" align="center" bgcolor="#FFFFFF"><input name="delete" type="submit" id="delete" value="Delete"></td>
  48. </tr>
  49. <?
  50. // Check if delete button active, start this
  51. if($delete){
  52. for($i=0;$i<$count;$i++){
  53. $del_id = $checkbox[$i];
  54. $sql = "DELETE FROM $tbl_name WHERE id='$del_id'";
  55. $result = mysql_query($sql);
  56. }
  57.  
  58. // if successful redirect to delete_multiple.php
  59. if($result){
  60. echo "<meta http-equiv=\"refresh\" content=\"0;URL=delete_multiple.php\">";
  61. }
  62. }
  63. mysql_close();
  64. ?>
  65. </table>
  66. </form>
  67. </td>
  68. </tr>
  69. </table>
Last edited by fortiz147; Aug 13th, 2008 at 5:09 am. Reason: code tag
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #2
Aug 13th, 2008
see this code will work at this url:
http://www.daniweb.com/forums/thread134908.html
Be intelligent, But Don't try to cheat.. Be innocent But Don't get cheated..
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #3
Aug 13th, 2008
it won't help sorry.. coz im lookin for the delete function not validation
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #4
Aug 13th, 2008
hello..
see that code is not for validating...
for checking checkboxes only...
its working fine for me...
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #5
Aug 13th, 2008
yep but i need the delete function for mysql >.< i dont know how to query the data from mysql in php when using the checkboxes in each row.
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #6
Aug 13th, 2008
ya,this is the continuation code for the above post...
after getting all check boxes you checked,then write this query to delete them(checked)
php Syntax (Toggle Plain Text) 
  1. if(isset($_POST['check_compare']))
  2. {
  3. $tempids=$_POST['check_compare'];	
  4. echo $tempids;
  5.  
  6. $ser_qry="delete  from sometable where find_in_set(p_id,'".$_POST['check_compare']."')";
  7. $ser_res=mysql_query($ser_qry);
  8.  
  9.  
  10. }
Last edited by Shanti Chepuru; Aug 13th, 2008 at 7:00 am.
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #7
Aug 14th, 2008
yep but i need the delete function for mysql >.< i dont know how to query the data from mysql in php when using the checkboxes in each row.
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #8
Aug 14th, 2008
thank you!!!! i will try the code. =)
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #9
Aug 14th, 2008
hi.. i am a also a newbie.. try this one.. this worked for me.
php Syntax (Toggle Plain Text) 
  1. <html>
  2. 	<head>
  3.  
  4. 	</head>
  5. 	<body>
  6. 		<?php
  7. 			//mysql connection
  8. 			$dbconn = mysql_connect("","","") or die();
  9. 			mysql_select_db("table") or die();
  10.  
  11. 			$sqlquery = "your query"; // query on table
  12. 			$sqlresult = mysql_query($sqlquery, $dbconn);
  13. 			$count = mysql_num_rows($sqlresult); // count query result			
  14.  
  15. 		?>
  16.  
  17. 		<form method="post" action="delete.php">
  18. 			<!--
  19. 				some table headers here / or html tags
  20. 			-->
  21. 		<?php
  22. 			//loop here
  23. 			while($row = mysql_fetch_array($sqlresult))
  24. 			{
  25. 			//inside while
  26. 		?>
  27. 				<tr>
  28. 					<td><input type="checkbox" name="checkbox[]" id="checkbox[]"  value="<?php echo $row['id']?>" /></td>
  29. 					<!--
  30. 					and other data you want to print out..
  31. 					-->
  32. 				</tr>
  33. 		<?php	
  34. 			}
  35. 		?>	
  36. 				<tr><input id='delete' type='submit' name='delete' value='Delete'/></tr>
  37. 		</form>
  38. 	</body>
  39. </html>
  40.  
  41. <?php
  42. #these following code for delete.php file 
  43. ?>
  44.  
  45. <html>
  46. 	<?php
  47. 		//mysql connection here
  48.  
  49. 		if($_POST['delete']) // from button name="delete"
  50. 		{
  51. 			$checkbox = $_POST['checkbox']; //from name="checkbox[]"
  52. 			$countCheck = count($_POST['checkbox']);
  53.  
  54. 			for($i=0;$i<$countCheck;$i++)
  55. 			{
  56. 				$del_id  = $checkbox[$i];
  57. 				$sql = "delete from table where id = $del_id";
  58. 				$result = mysql_query($sql, $dbconn);
  59. 			}
  60. 				if($result)
  61. 				{
  62. 					echo "successful delete";
  63. 				}
  64. 				else
  65. 				{
  66. 					echo "Error: ".mysql_error();
  67. 				}
  68. 		}
  69. 	?>
  70. </html>
Last edited by enim213; Aug 14th, 2008 at 5:21 am.
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Re: help with delete multiple rows in mysql using checkboxes

 
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  #10
Aug 19th, 2008
finally!!!!!!! it worked! thank you to everyone especially to enim!
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