do I have to pass a path in html get request

PHP
//PHP functions
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

//.htaccess
php_flag display_startup_errors on
php_flag display_errors on
php_flag html_errors on
php_flag log_errors on
php_value error_log  /home/path/public_html/domain/PHP_errors.log<a href="./directory/yourfile.pdf" download="newfilename">Download the pdf</a>Directories must have execute permissions to be usable;
Usually this is 0755.
PHP scripts run via mod_php are not executed but rather read;
0644 will suffice for this.
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