CI框架验证码CAPTCHA辅助函数用法实例_PHP
本文实例讲述了CI框架验证码CAPTCHA 辅助函数的用法,分享给大家供大家参考。具体如下:
使用CAPTCHA 辅助函数很方便生成验证码,但是图片是存储在文件夹下,不是输出流,感觉不够完美,可以拿来用用。
说明:产生4位的随机数,CI根目录下建立captcha文件夹。
代码如下:
$this->load->helper('captcha');
$vals = array(
'word' => rand(1000, 10000),
'img_path' => './captcha/',
'img_url' => 'http://localhost/ci/captcha/',
//'font_path' => './path/to/fonts/texb.ttf',
'img_width' => '150',
'img_height' => 30,
'expiration' => 7200
);
$cap = create_captcha($vals);
echo $cap['image'];
?>
运行结果如下图所示:
希望本文所述对大家的CI框架程序设计有所帮助。

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