Why is My PHP Script Only Uploading One Image Instead of Multiple from the File Input?

Resolving the issue with PHP scripts that only upload one image instead of multiple images from a file input. Learn how to modify your code to handle multiple file uploads effectively.
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When working with file uploads in PHP, many developers encounter the issue of their script only uploading a single image despite expecting multiple uploads from a file input. This common problem typically boils down to a few specific code components and configurations.

Understanding the Problem

In HTML, to allow users to upload multiple files from a single input, we use the multiple attribute on the file input element. Additionally, the name attribute must be structured to handle an array of files. Here's an example:

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This name="images[]" signifies that the input can now handle an array of files, enabling users to select more than one image.

Common Mistakes in PHP File Upload Handling

Many PHP scripts fail to upload multiple images due to mishandling of the $_FILES superglobal array. A typical script may look something like this:

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The issue here is that this script assumes $_FILES['image'] only contains a single file's information. However, for multiple file uploads, we must loop through the arrays within $_FILES.

Correct Approach to Handle Multiple File Uploads

To properly handle the upload of multiple files, modify your PHP script as follows:

[[See Video to Reveal this Text or Code Snippet]]

Summary

Ensure that your HTML form element is properly configured to handle multiple files and adjust your PHP script to loop through the $_FILES array. This approach will resolve the issue of only uploading a single file when multiple files are selected, enabling you to effectively handle multiple image uploads.

For developers experiencing issues with single versus multiple file uploads, understanding and implementing these adjustments will streamline your PHP file upload processes.