In what ways can PHP server configurations, such as memory limits and execution time, affect the successful download of files, particularly those of significant size?

PHP server configurations, such as memory limits and execution time, can affect the successful download of large files by potentially causing timeouts or memory exhaustion errors. To ensure successful downloads of significant size files, it is important to adjust these configurations accordingly to allow for enough memory allocation and execution time.

// Increase memory limit and execution time for downloading large files
ini_set('memory_limit', '256M');
ini_set('max_execution_time', 300);