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What is the method for modifying mysql data in php
- 王林Original
- 2020-11-09 16:32:062031browse
The method for PHP to modify mysql data is to use the update statement combined with the mysqli_query function to achieve the modification, such as [mysqli_query($con,"UPDATE Persons SET Age=36 WHERE words].
The UPDATE statement is used to update existing records in the database table.
(Related tutorial recommendations: mysql tutorial)
Syntax:
UPDATE table_name SET column1=value, column2=value2,... WHERE some_column=some_value
In order for PHP to execute the above statement, we must use the mysqli_query() function. This function is used to send queries or commands to the MySQL connection.
Example:
Persons table:
<?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,"UPDATE Persons SET Age=36
WHERE FirstName='Peter' AND LastName='Griffin'");
mysqli_close($con);
?>Updated Persons table
Related recommendations: php training
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