说明
此函数是该函数的别名：is_writable()。
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hsh at autowise dot dk ¶
5 years ago
A tiny benefit of using is_writeable() instead of is_writable() is that is_writable() will pollute search results when searching source code for files containing the word "table".
Writeable is an alternative and not as frequently used (but still absolutely correct) spelling of writable.
备份地址：http://www.lvesu.com/blog/php/function.is-writeable.php