thinkphp batch delete

When writing projects using the thinkphp framework, we often encounter situations where we need to delete data in batches. If you just want to delete a single piece of data, you can use the delete method that comes with the framework. However, if we need to delete data in batches, we need to use other methods.

1. Use the select method to query the data to be deleted

First, we need to use the select method to query the data to be deleted and store the data in an array:

$ids = input('post.ids/a');
$data = Db::table('table_name')->where('id', 'in', $ids)->select();

Among them, $ids represents the id value of the data to be deleted sent from the front end. We use the where method to filter out the data with id in $ids and store it in the $data array.

2. Use the foreach method to loop through deleting data

Next, we can use the foreach method to traverse the $data array, and use the framework’s own delete method to delete the data:

foreach ($data as $value) {
    Db::table('table_name')->where('id', $value['id'])->delete();
}

During the loop, we use the where method to filter out the id value of the current data and delete it.

3. Use the batchDelete method of the Db class to delete data in batches

In addition, the thinkphp framework also provides a method to delete data in batches-batchDelete. We can directly use this method to complete the batch deletion of data:

$ids = input('post.ids/a');
Db::table('table_name')->where('id', 'in', $ids)->batchDelete();

Among them, the batchDelete method will directly delete all the queried data based on the conditions filtered by the where method.

Summary

The above is how to delete data in batches using the thinkphp framework. Basically, the where method is used to filter out the data to be deleted, and then perform circular deletion or direct batch deletion. For deleting large amounts of data, it is recommended to use the batchDelete method, which can improve deletion efficiency. No matter which method you use, you need to take special care to ensure that you don't accidentally delete your data.

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