修改驗證碼字體

script/php/captcha.php

@@ -34,7 +34,7 @@ function imgcode($nums, $width, $high)
 
     //建立圖示，設置寬度及高度與顏色等等條件
     $image = imagecreate($width, $high);
-    $black = imagecolorallocate($image, mt_rand(0, 200), mt_rand(0, 200), mt_rand(0, 200));
+    $color = imagecolorallocate($image, mt_rand(0, 200), mt_rand(0, 200), mt_rand(0, 200));
     $border_color = imagecolorallocate($image, 21, 106, 235);
     $background_color = imagecolorallocate($image, 235, 236, 237);
 
@@ -45,15 +45,19 @@ function imgcode($nums, $width, $high)
     imagerectangle($image, 0, 0, $width - 1, $high - 1, $border_color);
 
     //在圖示布上隨機產生大量躁點
-    for ($i = 0; $i < 80; $i++) {
-        imagesetpixel($image, rand(0, $width), rand(0, $high), $black);
-    }
-
-    $strx = rand(3, 8);
+   
+    $font = 'Jersey_M54.ttf';
+    $strx = rand(2, 6); //rand(12, 27)
     for ($i = 0; $i < $nums; $i++) {
-        $strpos = rand(1, 6);
-        imagestring($image, 5, $strx, $strpos, substr($code, $i, 1), $black);
-        $strx += rand(10, 30);
+        $color = imagecolorallocate($image, mt_rand(0, 200), mt_rand(0, 200), mt_rand(0, 200));
+        $strpos = rand(23, 29);
+        $strang = rand(-10, 10);
+        //imagestring($image, 5, $strx, $strpos, substr($code, $i, 1), $black);
+        imagettftext($image, 20, $strang, $strx, $strpos, $color, $font, substr($code, $i, 1));
+        $strx += rand(13, 25);
+    }
+    for ($i = 0; $i < 80; $i++) {
+        imagesetpixel($image, rand(0, $width), rand(0, $high), $color);
     }
 
     imagepng($image);