HTML basic tutorial form hidden fields

Hidden field

Function: A hidden field is an invisible box. Pass some value that you don't want others to see.

Use: Mainly used for PHP backend programs, such as: when modifying the content of a certain news, you need to pass the ID number of the news.

Grammar format: <input type = “hidden” name = “name” value = “default value” />

This will be frequently used in future projects , let’s do some understanding first

Continuing Learning

new file

<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>用户注册</title> </head> <body> <font size="5" color="red">欢迎注册php.cn</font> <form name="user" method="get" action="" > 用户名：<input type="text" name="username"/> <br/> 密码：<input type="password" name="userpwd"/> <br/> 性别：<input type="radio" name="sex" value="男" checked=checked>男 <input type="radio" name="sex" value="女">女 <br/> 爱好：<input type="checkbox" name="hobby" value="运动">运动 <input type="checkbox" name="hobby" value="看电影">看电影 <input type="checkbox" name="hobby" value="编程" checked="checked">编程 <input type="checkbox" name="hobby" value="宅着">宅着 <br/>所在地： <select name="city"> <option value="北京">北京<option> <option value="上海">上海<option> <option value="杭州" selected="selected">杭州<option> <option value="南京">南京<option> <option value="合肥">合肥<option> </select> <br/>个性介绍：<br/><textarea name=" introduction" cols="30" rows="4"></textarea> <br/><input type="submit" value="提交信息"/> <input type="reset" value="重填一次"/> <input type="image" src="http://photocdn.sohu.com/20160107/mp52903269_1452135104978_1_th.png" width="70"/> <input type="button" onclick="javascript:window.close()" value="关闭窗口"/> </form> </body>

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HTML basic tutorial form hidden fields

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