[php-src] Issue #8239: For php://input fread() writes temp files

Issue: https://github.com/php/php-src/issues/8239 Author: raubv0gel ### Description The following code: Please, see Stackoverflow for some discussion. ```php <?php // index.php $postBodyResource = fopen("php://input", 'rb'); while (!feof($postBodyResource)) { $data = fread($postBodyResource, 5 * 1024); } fclose($postBodyResource); ``` and Apache 2.4 config ``` Alias "/api" "${SRVROOT}/htdocs/Api" <Directory "${SRVROOT}/htdocs/Api"> RewriteEngine On RewriteCond %{REQUEST_FILEaNAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^ index.php [QSA,L] Script POST "index.php" Script PUT "index.php" php_value enable_post_data_reading Off </Directory> ``` Resulted in this output: If I do a HTTP POST (Content-Type: application/octet-stream) at http://localhost/api with a body larger than 16 kB, PHP creates a temp file at sys_temp_dir or upload_dir that stores the whole content of the stream php://input while doing fread(). But I expected this output instead: At least there should be a configuration option to disable writing the temp files. ### PHP Version >= PHP 7.4 ### Operating System Windows 10 21H2