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php delete function can be achieved through the "PHP MySQL Delete" statement, the syntax is "DELETE FROM table_name WHERE some_column = some_value".
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php delete function:
PHP MySQL Delete
DELETE statement is used to delete rows from a database table.
Delete data in the database
The DELETE FROM statement is used to delete records from the database table.
Syntax
DELETE FROM table_name WHERE some_column = some_value
Note: Please note the WHERE clause in DELETE syntax. The WHERE clause specifies which records need to be deleted. If you want to omit the WHERE clause, all records will be deleted!
In order for PHP to execute the above statement, we must use the mysqli_query() function. This function is used to send a query or command to the MySQL connection.
Example
Please look at the "Persons" table below:
<?php
$con=mysqli_connect("localhost","username","password","database");
// 检测连接
if (mysqli_connect_errno())
{
echo "连接失败: " . mysqli_connect_error();
}
mysqli_query($con,"DELETE FROM Persons WHERE LastName='Griffin'");
mysqli_close($con);
?>
在这次删除, the "Persons" table looks like this: 
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