I have a file on a network shared location, and I want to check if it exists programmatically with PHP.
When running from PhpUnit, it works fine. My minimal test is:
public function testBackupFileExists () {
$backup_pname = 'R:\myFolder\mySubFolder\myFile.csv';
$this->assertTrue (file_exists ($backup_pname), "File $backup_pname not found");
}
When running from a web interface, from my localhost, file_exists() returns false...
They both use the same version of PHP (7.4.1) and are both executed from the same machine. I also tried running clearstatcache(), but it doesn't work.