Index: branches/5.2.x/core/kernel/utility/logger.php
===================================================================
--- branches/5.2.x/core/kernel/utility/logger.php
+++ branches/5.2.x/core/kernel/utility/logger.php
@@ -917,7 +917,11 @@
 			}
 		}
 
-		// next line also trigger attached error handlers
+		if ( PHP_SAPI === 'cli' ) {
+			throw new RuntimeException($error_msg);
+		}
+
+		// Next line also trigger attached error handlers.
 		trigger_error($error_msg, E_USER_WARNING);
 
 		return true;