How to Efficiently Count Rows in a SQL Table Using PHP?

Optimizing Row Counts in SQL Tables using PHP

For efficient row counting in SQL tables without retrieving the entire dataset, SELECT COUNT(*) is the optimal method. While avoiding reserved words for column names is best practice, we'll use "cnt" here as a placeholder for the count.

Here's how to retrieve the count in PHP:

<code class="language-php">$count = $mysqli->query("SELECT COUNT(*) AS cnt FROM cars")->fetch_object()->cnt;</code>

This concise code performs these steps:

1. Executes the SQL query counting rows in the "cars" table.
2. Retrieves the result as a PHP object.
3. Accesses the count from the object's cnt property.

This technique avoids fetching unnecessary data, resulting in significant performance gains and reduced resource consumption.

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