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How Do I Efficiently Iterate Through MySQL Result Sets in PHP?

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2024-12-17 14:20:09524browse

How Do I Efficiently Iterate Through MySQL Result Sets in PHP?

How to Effectively Loop Through MySQL Result Sets

As a beginner in PHP and MySQL, navigating through result sets can be daunting. Here are some simple techniques to help you effectively loop through them:

Iterating with mysql_fetch_array()

This is a straightforward approach:

<?php

$result = mysql_query("select * from table");

if ($result) {
  while($row = mysql_fetch_array($result)) {
    // Handle the row data here
  }
} else {
  echo mysql_error();
}
?>

Here's how it works:

  • Connect to the database and execute a query to retrieve data.
  • Inside a while loop, repeatedly fetch a row from the result set using mysql_fetch_array().
  • Each iteration, you have access to the current row data via the $row variable.
  • Continue looping until all rows are exhausted.

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