Fix #88 - Division by zero if captcha length is 1

dapphp · May 30, 2020 · 633c520 · 633c520
1 parent c8d3c7d
commit 633c520
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/securimage.php b/securimage.php
@@ -2118,7 +2118,7 @@ protected function drawWord()
             $angleN = -$angleN;
         }
 
-        $step   = abs($angle0 - $angleN) / ($this->strlen($captcha_text) - 1);
+        $step   = abs($angle0 - $angleN) / (max(1, $this->strlen($captcha_text) - 1));
         $step   = ($angle0 > $angleN) ? -$step : $step;
         $angle  = $angle0;