Add stripos() for compatibility for PHP < 5. This will be needed for a patch later, I think.

git-svn-id: https://develop.svn.wordpress.org/trunk@5187 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/compat.php

@@ -118,4 +118,11 @@ if ( !function_exists('_') ) {
 	}
 }
 
+// Added in PHP 5.0
+if (!function_exists('stripos')) {
+	function stripos($haystack, $needle, $offset = 0) {
+		return strpos(strtolower($haystack), strtolower($needle), $offset);
+	}
+}
+
 ?>