How can PHP code be optimized to prevent repetitive data insertion into a MySQL table?

To prevent repetitive data insertion into a MySQL table, you can use the "INSERT IGNORE" or "INSERT ON DUPLICATE KEY UPDATE" queries in PHP. These queries help avoid inserting duplicate records by either ignoring the insertion if a duplicate key constraint is violated or updating the existing record with new values. This optimization can help improve the efficiency of your application and maintain data integrity. 

// Assuming $conn is the MySQL database connection object

// Using INSERT IGNORE query to prevent repetitive data insertion
$sql = "INSERT IGNORE INTO table_name (column1, column2) VALUES ('value1', 'value2')";
$result = $conn->query($sql);

// Using INSERT ON DUPLICATE KEY UPDATE query to prevent repetitive data insertion
$sql = "INSERT INTO table_name (column1, column2) VALUES ('value1', 'value2') ON DUPLICATE KEY UPDATE column1='value1', column2='value2'";
$result = $conn->query($sql);

Keywords

PHP MySQL optimization data insertion repetitive

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