prevent incompatible export files (osada/zap) from being imported (manual patch from dev)

include/text.php

@@ -3217,6 +3217,28 @@ function array2XML($obj, $array) {
 	}
 }
 
+function array_path_exists($str,$arr) {
+
+	$ptr = $arr;
+	$search = explode('/', $str);
+
+	if($search) {
+		foreach($search as $s) {
+			if(array_key_exists($s,$ptr)) {
+				$ptr = $ptr[$s];
+			}
+			else {
+				return false;
+			}			
+		}
+		return true;
+	}
+
+	return false;
+
+}
+
+
 /**
  * @brief Inserts an array into $table.
  *
@@ -3480,3 +3502,4 @@ function print_val($v) {
 	return $v;
 
 }
+