How to Correctly Display Multiple Database Records in PHP Using mysqli

Описание: Learn how to troubleshoot and display multiple records from your database in PHP, avoiding common pitfalls when fetching data.
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This video is based on the question https://stackoverflow.com/q/67585553/ asked by the user 'MeltedIceCream' ( https://stackoverflow.com/u/14625455/ ) and on the answer https://stackoverflow.com/a/67585808/ provided by the user 'pdweb.dev' ( https://stackoverflow.com/u/13679392/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Correctly Display Multiple Database Records in PHP Using mysqli

When developing any web application that interacts with a database, it's common to face challenges while trying to display data effectively. If you're new to PHP and mysqli, you might encounter a situation where you're able to retrieve only a single record from your database, even though you're intending to fetch multiple records. In this post, we'll address this issue and provide a step-by-step solution to ensure all your records are displayed correctly.

The Problem: Only One Record Displayed

You might find that your web page successfully shows the name of a dog from your database, but the rest of the information—like location, description, and other details—remains hidden. You might be using the correct syntax throughout your code and even have matching column names, so why is only one value showing?

Example Code

To illustrate, here’s a snippet of the code causing the problem:

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In the example above, the code executes a query to fetch several columns from the dog_info table, but the way data is being accessed means that only the first record is being displayed for the Dog_name.

The Solution: Using an Array and foreach

Storing Multiple Records

To resolve this issue, you can store the fetched records in an array. This way, you can loop through the array and display all relevant information. Here’s how to modify your code:

Create an Array to Hold Records:

You can accomplish this by initializing an empty array and then populating it with the results from your SQL query.

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Displaying the Records

Using foreach to Display Data:

After storing all records in the $dogs array, you can easily loop through it to display all the necessary information for each dog. For example:

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Conclusion: Fetching and Displaying Data Correctly

By storing the fetched results in an array and using foreach, you can effectively display multiple records from your database. This method ensures that all relevant information is retrieved and displayed, rather than just the first record.

This small change can greatly improve how data is rendered in your application, making it more professional and user-friendly. If you encounter similar problems in your coding journey, remember to check how you are fetching and displaying your data!

With this guide, you should now have a clearer understanding of how to resolve these common pitfalls in your PHP web applications. Happy coding!