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php锁定文本框内容的方法

Jun 06, 2016 pm 07:55 PM
linux php content text method Community Enter locking

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 有时候我们希望表单中的文本框是只读的,让用户不能修改其中的信息,如input type="text" name="zg" value="中国" 的内容,"中国"两个字不可以修改,有三种方法。 方法1: onfocus=this.blur() inpu

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  有时候我们希望表单中的文本框是只读的,让用户不能修改其中的信息,如 的内容,"中国"两个字不可以修改,有三种方法。

  方法1: onfocus=this.blur()

  

  方法2:readonly

  

  

  方法3: disabled

  

  下面分别是readonly和disabled的效果截图:

php锁定文本框内容的方法

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  应用案例:

php锁定文本框内容的方法

  [html] view plaincopy

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

登录密码: * 当前的登录密码
真实姓名:

  

* 请输入您的真实姓名
身份证号:

  

* 请输入您的身份证号

  

  从数据库中读出姓名,当姓名修改提交后,把数据库中的ustat字段设置为1,刷新页面后,当检测到son[ustat]==1时,添加属性readonly,防止用户再次修改文本框内容。

php锁定文本框内容的方法

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