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PHP English Verification Code captcha.class.php Copy the Code code as follows: Class Captcha{Private $width;Private $height;Private $codeNum;Private $code;Private $im;function __construct ($width =80, $height =20, $codeNum =4){$this->width = $width;$this->height = $height

Thinkphp verification code is a perfect solution to the problem where thinkphp verification code fails to be displayed. The thinkphp verification code error cannot be displayed. the thinkphp v