PHP USES a checkbox to delete multiple records at once

  • 2020-03-31 20:25:36
  • OfStack

A simple example
There is an existing database of student information and multiple records need to be deleted at once
Create a file called del.php
The code is as follows:

 
<form action="sc.php" method=post> 
<table border=1 width=60% align=center> 
<caption> Student information sheet </caption> 
<th> options </th><th> Student id </th><th> The name < /th><th> gender </th><th> The phone </th> 
<?php 
$link=mysql_connect("localhost","root",""); 
mysql_select_db("zs"); 
$exec="select * from student"; 
$result=mysql_query($exec); 
while($rs=mysql_fetch_object($result)) 
{ 
$id=$rs->sID; 
$name=$rs->sName; 
$sex=$rs->sSex; 
$phone=$rs->sPhone; 
?> 
<tr> 
<td> <input type=checkbox name=de[] value=<?php echo $id?>></td><td><?php echo $id?></td><td><?php echo $name?></td><td><?php echo $sex?></td><td><?php echo $phone?></td> 
</tr> 
<?php 
} 
mysql_close(); 
?> 
</table> 
<center><input type=submit value=" delete "></center> 
</form> 

This file is mainly used to display the data in the database and display it.
Create a new file named sc.php with the following code:
 
<?php 
$link=mysql_connect("localhost","root",""); 
mysql_select_db("zs"); 
$id=$_POST['de']; 
foreach($id as $ide){ 
$exec="delete from student where sID=$ide"; 
$result=mysql_query($exec); 
if((mysql_affected_rows()==0) or (mysql_affected_rows==-1)) 
{ 
    echo " No record was found, or an error occurred while deleting "; 
    exit; 
    } 
else{ 
    echo " Student information has been deleted "; 
    } 
    } 
    mysql_close(); 
?> 

Delete the records separately using foreach.


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