What are the different types of JOIN operations available in PHP for combining data from multiple tables?

When working with databases in PHP, JOIN operations are commonly used to combine data from multiple tables based on a related column between them. The different types of JOIN operations available in PHP include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. Each type of JOIN operation has its own specific use case and can be selected based on the desired outcome of the query. 

// Example of using INNER JOIN in PHP to combine data from two tables
$sql = "SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id";
$result = mysqli_query($connection, $sql);

if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        // Process the combined data
    }
}

Keywords

JOIN SQL PHP tables data

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