How can SQL statements be effectively debugged and displayed within PHP functions to identify potential errors?

To effectively debug SQL statements within PHP functions, you can use the `echo` or `var_dump` functions to display the SQL query before executing it. This allows you to visually inspect the query for any errors or issues. Additionally, you can use error handling functions like `mysqli_error` to catch any SQL errors that occur during execution. 

// Example PHP code snippet to debug and display SQL statements
$sql = "SELECT * FROM users WHERE id = 1";
echo "SQL Query: " . $sql; // Display the SQL query
$result = mysqli_query($conn, $sql);

if (!$result) {
    echo "Error: " . mysqli_error($conn); // Display any SQL errors
} else {
    // Process the query result
}

Keywords

SQL debugging PHP functions error identification error handling SQL errors

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