phpbb_chmod_debug.php

<?php

header('Content-type: text/plain');

foreach (array('index', 'mcp', 'ucp', 'config', 'adm/index') as $file)
{
	if (!file_exists("./$file.php"))
	{
		die(sprintf('Sure this is in your phpBB directory? "%s" is missing', $file));
	}
}

$test_file = './cache/phpbb_chmod_debug.test';

touch($test_file);

$code = array(
	"php_uname()",
	"function_exists('fileowner')",
	"function_exists('filegroup')",
	"function_exists('posix_getuid')",
	"function_exists('posix_getgroups')",
	"function_exists('posix_getpwuid')",
	"function_exists('posix_getgrgid')",
);

if (function_exists('fileowner'))
{
	$code = array_merge($code, array(
		"fileowner('./common.php')",
		"fileowner('$test_file')",
	));
}

if (function_exists('filegroup'))
{
	$code = array_merge($code, array(
		"filegroup('./common.php')",
		"filegroup('$test_file')",
	));
}

if (function_exists('posix_getuid'))
{
	$code = array_merge($code, array(
		"posix_getuid()",
	));
}

if (function_exists('posix_getgroups'))
{
	$code = array_merge($code, array(
		"posix_getgroups()",
	));
}

if (function_exists('posix_getuid') && function_exists('posix_getpwuid'))
{
	$code = array_merge($code, array(
		"posix_getpwuid(posix_getuid())",
	));
}

if (function_exists('posix_getgroups') && function_exists('posix_getgrgid'))
{
	$code = array_merge($code, array(
		"array_map('posix_getgrgid', posix_getgroups())",
	));
}

foreach ($code as $line)
{
	echo sprintf("`%1\$s` yeilds:\n%2\$s\n\n", $line, eval(sprintf('return var_export(%s, true);', $line)));
}

unlink($test_file);