What are the potential pitfalls of using multiple queries in PHP for database operations?

Using multiple queries in PHP for database operations can lead to inefficiency and increased load on the database server. It can also make the code harder to read and maintain. To solve this issue, consider using prepared statements or stored procedures to combine multiple operations into a single query, reducing the number of round trips to the database. 

// Example of using prepared statements to combine multiple operations into a single query

// Assume $conn is a valid database connection

// Prepare a single query to insert multiple records
$stmt = $conn->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?), (?, ?), (?, ?)");

// Bind parameters
$stmt->bind_param("ssssss", $value1_1, $value2_1, $value1_2, $value2_2, $value1_3, $value2_3);

// Set parameter values
$value1_1 = "value1_1";
$value2_1 = "value2_1";
$value1_2 = "value1_2";
$value2_2 = "value2_2";
$value1_3 = "value1_3";
$value2_3 = "value2_3";

// Execute the query
$stmt->execute();

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

Keywords

SQL injection performance database connection transaction management code readability

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