ValueError: Path cannot be empty in file_put_contents()

[patricksdd]

The problem occurs here:

htmlpurifier/library/HTMLPurifier/URIScheme/data.php

Lines 89 to 94 in b287d2a

	if (function_exists('sys_get_temp_dir')) {
	$file = tempnam(sys_get_temp_dir(), "");
	} else {
	$file = tempnam("/tmp", "");
	}
	file_put_contents($file, $raw_data);

tempnam() can return false, which leads to file_put_contents() throwing ValueError: Path cannot be empty on PHP 8+.