added skipif for root

ext/standard/tests/file/is_executable_variation2.phpt

@@ -5,6 +5,17 @@ Test is_executable() function: usage variations - file/dir with diff. perms
 if (substr(PHP_OS, 0, 3) == 'WIN') {
     die('skip not for windows');
 }
+// Skip if being run by root
+$filename = dirname(__FILE__)."/is_readable_root_check.tmp";
+$fp = fopen($filename, 'w');
+fclose($fp);
+if(fileowner($filename) == 0) {
+        unlink ($filename);
+        die('skip cannot be run as root');
+}
+
+unlink($filename);
+
 ?>
 --FILE--
 <?php

ext/standard/tests/file/is_readable_variation2.phpt

@@ -5,6 +5,17 @@ Test is_readable() function: usage variations - file/dir with diff. perms
 if (substr(PHP_OS, 0, 3) == 'WIN') {
     die('skip not for windows');
 }
+// Skip if being run by root
+$filename = dirname(__FILE__)."/is_readable_root_check.tmp";
+$fp = fopen($filename, 'w');
+fclose($fp);
+if(fileowner($filename) == 0) {
+        unlink ($filename);
+        die('skip cannot be run as root');
+}
+
+unlink($filename);
+
 ?>
 --FILE--
 <?php

ext/standard/tests/file/is_writable_variation2.phpt

@@ -5,6 +5,17 @@ Test is_writable() and its alias is_writeable() function: usage variations - fil
 if (substr(PHP_OS, 0, 3) == 'WIN') {
     die('skip.. only on LINUX');
 }
+// Skip if being run by root
+$filename = dirname(__FILE__)."/is_readable_root_check.tmp";
+$fp = fopen($filename, 'w');
+fclose($fp);
+if(fileowner($filename) == 0) {
+        unlink ($filename);
+        die('skip cannot be run as root');
+}
+
+unlink($filename);
+
 ?>
 --FILE--
 <?php

ext/standard/tests/file/lchown_error.phpt

@@ -4,6 +4,17 @@ Test lchown() function : error functionality
 <?php
 if (substr(PHP_OS, 0, 3) == 'WIN') die('skip no windows support');
 if (!function_exists("posix_getuid")) die("skip no posix_getuid()");
+// Skip if being run by root
+$filename = dirname(__FILE__)."/is_readable_root_check.tmp";
+$fp = fopen($filename, 'w');
+fclose($fp);
+if(fileowner($filename) == 0) {
+        unlink ($filename);
+        die('skip cannot be run as root');
+}
+
+unlink($filename);
+
 ?>
 --FILE--
 <?php

ext/standard/tests/file/tempnam_variation4.phpt

@@ -5,6 +5,17 @@ Test tempnam() function: usage variations - permissions(0000 to 0777) of dir
 if (substr(PHP_OS, 0, 3) == 'WIN') {
     die('skip Not valid for Windows');
 }
+// Skip if being run by root
+$filename = dirname(__FILE__)."/is_readable_root_check.tmp";
+$fp = fopen($filename, 'w');
+fclose($fp);
+if(fileowner($filename) == 0) {
+        unlink ($filename);
+        die('skip cannot be run as root');
+}
+
+unlink($filename);
+
 ?>
 --FILE--
 <?php