【程式】PHP : File 相關

列一下檔案的相關 Functions
都從 php.net 複制過來，只是記錄一下，
老了，常會忘掉，這樣下次就不用再查了

glob : Find pathnames matching a pattern
http://php.net/manual/en/function.glob.php

print_r(glob("*.txt"));

Output ......

Array(
    [0] => target.txt
    [1] => source.txt
    [2] => test.txt
    [3] => test2.txt
)

pathinfo : Returns information about a file path
http://php.net/manual/en/function.pathinfo.php

print_r(pathinfo("/testweb/test.txt"));

Output ......

Array(
    [dirname] => /testweb
    [basename] => test.txt
    [extension] => txt
)

is_dir : Tells whether the filename is a directory
http://www.w3school.com.cn/php/func_filesystem_is_dir.asp

$file = "images";
if (is_dir($file)) {
    echo ("$file is a directory");
} else {
    echo ("$file is not a directory");
}

Output ......

images is a directory

filesize : Gets file size
http://php.net/manual/en/function.filesize.php

echo filesize("test.txt");

Output ......

245