How can PHP configuration settings impact the success of file uploads?

PHP configuration settings such as `upload_max_filesize` and `post_max_size` can impact the success of file uploads by limiting the size of files that can be uploaded. To ensure successful file uploads, these settings should be adjusted to accommodate the size of files being uploaded. 

// Increase upload_max_filesize and post_max_size in php.ini
ini_set('upload_max_filesize', '20M');
ini_set('post_max_size', '20M');

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PHP configuration file uploads success impact settings

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