Are there any best practices or recommendations for efficiently querying data from MySQL tables in PHP?

When querying data from MySQL tables in PHP, it is recommended to use prepared statements to prevent SQL injection attacks and improve performance. Prepared statements allow you to execute the same SQL query multiple times with different parameters, reducing the overhead of parsing and optimizing the query each time it is executed. 

// Establish a connection to the MySQL database
$mysqli = new mysqli("localhost", "username", "password", "database");

// Prepare a SQL query using a prepared statement
$stmt = $mysqli->prepare("SELECT * FROM table WHERE column = ?");

// Bind parameters to the prepared statement
$stmt->bind_param("s", $value);

// Execute the prepared statement
$stmt->execute();

// Bind the results to variables
$stmt->bind_result($result1, $result2);

// Fetch the results
while ($stmt->fetch()) {
    // Process the results
    echo $result1 . " - " . $result2 . "<br>";
}

// Close the prepared statement
$stmt->close();

// Close the database connection
$mysqli->close();

Keywords

MySQL PHP query optimization database performance SQL injection

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