What potential issue could cause a PHP script to display a blank page when extending a SQL query with additional conditions?

The potential issue could be syntax errors or logical errors in the additional conditions added to the SQL query. To solve this issue, carefully review the additional conditions to ensure they are properly formatted and logically correct. Additionally, check for any errors in the PHP code that may be causing the query to fail. 

// Example PHP code snippet to demonstrate extending a SQL query with additional conditions

// Original SQL query
$sql = "SELECT * FROM users WHERE status = 'active'";

// Additional condition
$condition = "AND age > 18";

// Extending the SQL query with the additional condition
$sql .= " " . $condition;

// Execute the SQL query
$result = mysqli_query($connection, $sql);

// Check if the query was successful
if($result){
    // Process the query result
    while($row = mysqli_fetch_assoc($result)){
        // Output or process the data
    }
} else {
    // Display an error message
    echo "Error executing SQL query: " . mysqli_error($connection);
}

Keywords

PHP SQL query blank page additional conditions error.

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