Delete Multiple Records in php
Question
Can anyone tell me whats the problem with the code below? When I click the delete button, it gives me an error of
undefined index checkbox
even though checkbox is the name of the input tag below.
I know I haven't written the delete query, but thats not the point. I want to echo the $del_id , but I keep getting the error.
<?php
include 'connection.php';
if(isset($_POST['del'])){
$name=$_POST['checkbox'];
$del_id=implode(",", $name);
echo $del_id;
}
$sql="SELECT * FROM `student-reg`";
$result=mysqli_query($conn, $sql) or die(mysqli_error($conn));
echo "<table align='center' border='2'>
<tr>
<th>Mark</th>
<th>ID</th>
<th>First_Name</th>
<th>Last_Name</th>
<th>Roll_no</th>
<th>Degree</th>
</tr>
";
while($row=mysqli_fetch_assoc($result)){
$id=$row['Id'];
echo "
<tr>
<td><input type='checkbox' name='checkbox[]' value='".$row['Id']."'></td>
<td>{$id}</td>
<td>{$row['First_name']}</td>
<td>{$row['Last_name']}</td>
<td>{$row['Roll_no']}</td>
<td>{$row['Degree']}</td>
</tr>
";
}
?>
<html>
<body>
<form method="POST">
<input type="submit" value="Delete" name="del">
</form>
</body>
</html>
2 answers
solution1
0 2015-06-09 07:48:09
move this before the the closing tag of the script
if(isset($_POST['del'])){
$name=$_POST['checkbox'];
$del_id=implode(",", $name);
echo $del_id;
solution2
0 ACCPTED 2015-06-09 07:48:17
you form fields must be in <form></form> tag
<?php
include 'connection.php';
if(isset($_POST['del'])){
$name=$_POST['checkbox'];
$del_id=implode(",", $name);
echo $del_id;
}
$sql="SELECT * FROM `student-reg`";
$result=mysqli_query($conn, $sql) or die(mysqli_error($conn));
echo "<table align='center' border='2'>
<tr>
<th>Mark</th>
<th>ID</th>
<th>First_Name</th>
<th>Last_Name</th>
<th>Roll_no</th>
<th>Degree</th>
</tr>
"; ?>
<form method="post">
<?php
while($row=mysqli_fetch_assoc($result)){
$id=$row['Id'];
echo "
<tr>
<td><input type='checkbox' name='checkbox[]' value='".$row['Id']."'></td>
<td>{$id}</td>
<td>{$row['First_name']}</td>
<td>{$row['Last_name']}</td>
<td>{$row['Roll_no']}</td>
<td>{$row['Degree']}</td>
</tr>
";
}
?>
<html>
<body>
<input type="submit" value="Delete" name="del">
</form>
</body>
</html>
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