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With the popularity of the Internet, the website's comment system has become an important part of website interaction. The image upload of the comment system allows users to display their opinions more intuitively. In the process of using PHP to write a comment system, if you upload multiple images but they are not displayed, the following problems may have occurred.
When uploading multiple images, if one of the images fails to upload, all images may not be displayed. In this case, we should check the file size, file format, file path and other factors of the image to ensure that the upload is successful.
If the image is uploaded successfully but an error occurs when it is displayed, the image path may be incorrect. At this time, we need to check whether the upload path and the display path are consistent to ensure that the path is correct.
When using PHP to upload images, we usually perform file type filtering to ensure that the uploaded file is of image type. However, sometimes there is a problem with this filtering and the uploaded images cannot be displayed. At this point, we need to check whether the filter conditions are correct to ensure that the image type is allowed.
When uploading multiple images, if a different file name is not set for each image, the same image may be uploaded multiple times. , thus affecting the display effect. At this point, we need to set a different file name for each image to ensure that each image can be uploaded and displayed correctly.
Sometimes, the server will limit the number of pictures, resulting in only some of them being uploaded successfully when uploading multiple pictures. At this point, we need to check the server limits to ensure that the number of uploaded images does not exceed the server limits.
In short, when using PHP to write a comment system, uploading multiple images that are not displayed may be caused by a variety of problems. We should check each factor one by one to ensure that the image can be uploaded and displayed correctly, thereby improving the user experience.
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