How can the handling of AND/OR conditions in SQL impact the functionality of PHP code?

When handling AND/OR conditions in SQL, it is important to properly structure the queries to ensure the desired logic is achieved. If the conditions are not correctly implemented, it can impact the functionality of PHP code that relies on the query results. To solve this issue, carefully construct the SQL queries with the appropriate AND/OR operators to accurately filter the data. 

// Example of a SQL query with correct AND/OR conditions
$query = "SELECT * FROM table_name WHERE column1 = 'value1' AND column2 = 'value2' OR column3 = 'value3'";
$result = mysqli_query($connection, $query);

// Process the query results in PHP code
if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        // Process each row of data
    }
} else {
    echo "No results found.";
}

Keywords

SQL AND/OR conditions functionality PHP code impact

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