add log source file and line number to log msg

Logger.php

@@ -85,7 +85,8 @@ class Logger
      * */
      * */
     public function log($string)
     public function log($string)
     {
     {
-        $this->do_write($string);
+        $log_source = sprintf("%s:%d", basename(debug_backtrace()[0]['file']), debug_backtrace()[0]['line']);
+        $this->do_write($string, $log_source);
     }
     }
 
 
     /*
     /*
@@ -99,7 +100,9 @@ class Logger
      * */
      * */
     public function dump($var_name, $string = '')
     public function dump($var_name, $string = '')
     {
     {
-        $this->do_write((empty($string) ? 'VARDUMP ' : 'Dump of ') . $string . ' => ' . var_export($var_name, true));
+        $log_source = sprintf("%s:%d", basename(debug_backtrace()[0]['file']), debug_backtrace()[0]['line']);
+        $log_string = (empty($string) ? 'VARDUMP ' : 'Dump of ') . $string . ' => ' . var_export($var_name, true);
+        $this->do_write($log_string, $log_source);
     }
     }
 
 
     /*
     /*
@@ -110,9 +113,9 @@ class Logger
      *
      *
      * $access public
      * $access public
      * */
      * */
-    public function do_write($log_string)
+    public function do_write($log_string, $log_source)
     {
     {
-        $log_string = sprintf("%s %s", date(DATESTRING_FULL), $log_string);
+        $log_string = sprintf("%s %s -- %s", date(DATESTRING_FULL), $log_string, $log_source);
         $log_string = $log_string . PHP_EOL;
         $log_string = $log_string . PHP_EOL;
 
 
         if ($this->user_handle) {
         if ($this->user_handle) {