Example demonstrates how to use PHP code to implement batch deletion

With the development of the website, the amount of data continues to increase. If a large amount of data needs to be deleted, it is obviously too cumbersome to delete one by one manually. At this point, you can use the PHP code for batch deletion to achieve quick and convenient deletion operations.

The following is an example to demonstrate how to use PHP code to implement batch deletion:

<?php
if(isset($_POST[&#39;del_ids&#39;])){
$del_ids = implode(",", $_POST[&#39;del_ids&#39;]);
$sql = "DELETE FROM table_name WHERE id IN ($del_ids)";
//执行SQL语句
}
?>

Explanation:

First, use the isset() function to determine whether the form has been submitted. If it is submitted After opening the form, get the ID of the data that needs to be deleted (the form submission method can be selected by yourself).

Then use the implode() function to convert the ID array into a string and assign it to the $del_ids variable.

Next, delete data by constructing a SQL statement and using DELETE FROM and WHERE clauses. The IN clause is used here and the $del_ids variable is inserted into it to implement batch deletion.

Finally, execute the SQL statement to complete the batch deletion operation.

Note:

• You can modify the SQL statement according to actual needs, such as changing table names, field names, etc.
• In actual applications, the user's identity needs to be verified to avoid misoperations.
• The data in the database should be backed up to prevent unexpected situations.

Summary:

Batch deletion is a common operation in website management, and this function can be efficiently implemented using PHP code. The code provided above is only an example and can be modified and improved according to actual needs to achieve functions that are more suitable for the project.

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