php锁定文本框内容的方法
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:

****************************************************************************************
应用案例:

[html] view plaincopy
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。

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