How Do I Efficiently Iterate Through MySQL Result Sets?

Delving into the Nuances of MySQL Result Set Iteration

When working with MySQL result sets, navigating the various options for looping through their contents can be a perplexing endeavor for MySQL novices. Here are some tried-and-true approaches:

Using the mysql_fetch_array() Method

This method retrieves a row from a result set as an array, with column names as array keys. Looping through the result set is done as follows:

$link = mysql_connect(/*arguments here*/);

$query = sprintf("select * from table");

$result = mysql_query($query, $link);

if ($result) {
  while($row = mysql_fetch_array($result)) {
    // do something with the $row
  }

}
else {
  echo mysql_error();
}

Comprehending the Code Structure

• $link: This variable holds the established connection to the MySQL server.
• $query: The SQL query to retrieve the result set.
• $result: The resulting MySQL result set.
• The mysql_query() function executes the query and returns the result set.
• The while() loop iterates through each row in the result set, with $row representing the current row.
• Within the loop, you can access column values using $row['column_name'].

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