在PHP中,is_file和file_isexist是有很小区别的
1) is_file:
$path ="/path/to/file/text.txt";
if(file_exists($path))
echo "File Exists";
else
echo "File not Exists";
比如在这个例子中,文件存在会返回true,不存在返回false,但注意的是,假如传入一个
正确的路径(比如一个文件目录),也会返回true:
$path ="/path/to/file";
2) file_isexist()
这个就不会了,真的是判断一个文件是否存在,假如传入上面的一个虽然看上去
正确的路径,也是返回false的哦
作者“jackyrong”

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