Let's talk about how to solve the problem that php pictures cannot be displayed.

With the development of Internet technology, website construction has become an indispensable part of modern society. As one of the most commonly used development languages ​​in modern website development, PHP has become the first choice of many developers due to its ease of learning and wide use. However, when we use PHP to develop websites, we sometimes encounter some problems, such as pictures not being displayed properly. So, how to solve the problem that PHP pictures cannot be displayed? then, let's watch it together.

1. Check the image path

When php displays an image, you first need to obtain the path of the image. Therefore, when encountering a situation where the image cannot be displayed normally, we need to check whether the path of the image is correct. When checking the image path, you can solve the problem of wrong path by adding "./" or "../" before the file path. If the image path is correct but still cannot be displayed normally, you need to continue troubleshooting.

2. Check file permissions

File permissions refer to the way a file is allowed to execute. In PHP, if the file permissions are set incorrectly, the image will not be displayed properly. At this point, we need to check whether the permissions of the directory where the image is located are correct, and ensure that php has sufficient permissions to read the file. Permission issues can be solved by setting the file permissions to 755.

3. Check image format

php supports multiple formats of images, but some formats may not be supported by php, such as WebP format. If the image format is not supported by PHP, the image cannot be displayed normally. At this point, we need to convert the image format to a format supported by php, such as JPEG or PNG format.

4. Check PHP extensions

During PHP development, certain PHP extensions are sometimes used, such as GD library, Imagick, etc. If these extensions are not installed or configured correctly, images will not display properly. At this point, we need to check to make sure that these extensions have been installed correctly and configured correctly in PHP.

5. Check the Web server configuration

Web server configuration is also a common factor that causes PHP images to fail to display properly. In the Apache server, we usually need to check whether the mod_rewrite module is enabled and whether the .htaccess file is correctly configured. In the Nginx server, we need to check whether the location is configured correctly and whether the rewrite module is enabled.

Summary:

The above are several situations and solutions when PHP images cannot be displayed normally. During development, we need to carefully investigate every possible problem and resolve it in a timely manner. At the same time, you need to pay attention to following good development habits, including file naming specifications, directory structure specifications, code comments, etc. Only in this way can we more effectively avoid problems such as PHP images not being displayed properly and develop more efficient and high-quality website applications.

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