2020-05-02 / 4879阅 / 悠然
输出html只读属性。
比较前两个参数，如果相同则标记为只读
(mixed)
(Required)
One of the values to compare
(mixed)
(Optional)
(true) The other value to compare if not just true
Default value: true
(bool)
(Optional)
Whether to echo or just return the string
Default value: true
(string) html attribute or empty string