How can debugging techniques in PHP be used to identify and resolve issues with database updates?

When encountering issues with database updates in PHP, debugging techniques can be used to identify the root cause of the problem. One common approach is to echo or log the SQL queries being executed to ensure they are correct and contain the expected data. Additionally, checking for any error messages returned by the database can provide valuable insights into what might be going wrong. 

// Example PHP code snippet for debugging database updates
$sql = "UPDATE table_name SET column_name = 'new_value' WHERE condition";

// Echo the SQL query for debugging purposes
echo $sql;

// Execute the SQL query
if ($conn->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

Keywords

PHP debugging database updates error handling SQL queries

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