What should I do if the file cannot be found when downloading php?

The solution to the problem that the file cannot be found when downloading php: first open the corresponding code file; then modify the content to "ini_set('memory_limit','350M');"; finally add the "ob_end_clean()" function and Just save the changes.

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Solution to the problem that the PHP download file is too large and the file cannot be found The method

set_time_limit(0);
ini_set('memory_limit','350M');
header("Cache-Control: public");
header("Content-Description: File Transfer");
header('Content-disposition: attachment; filename=' . basename($file_name . $extension)); //文件名
header("Content-Transfer-Encoding: binary"); //告诉浏览器，这是二进制文件
header('Content-Length: ' . filesize($filename)); //告诉浏览器，文件大小
ob_end_clean();
readfile($file);

is mainly the setting of memory_limit() and the use of ob_end_clean() function

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