效果参考(附源码)http://mail.htjs.net/yanzhengma/test.php
//检验校验码
if(isset($http_post_vars[sub])):
if($http_post_vars[number] != $http_session_vars[login_check_number] || empty($http_post_vars[number])){
    echo 校验码不正确! ;
}else{
    echo验证码通过！;
}
endif;
show_source('test.php');
//以上本页的源码
//以下是生成验证码的源码
show_source('yanzhengma.php');
?>
http://www.bkjia.com/phpjc/314647.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/314647.htmltecharticle效果参考(附源码)http://mail.htjs.net/yanzhengma/test.php ?session_start (); ? form method=post action= input type=text name=number maxlength=4img src=yanzhengma.php?act=i...