CODEWITHSUNDEEP
php
user2294256
user2294256

Reputation: 1049

issue with the output of dir->read() in php

inside ajax folder, there are files: json.php, load.php, script.php

main.php

<?php
$dir = dir("ajax");
while (($file = $dir->read()) !== false)
{
echo "filename: " . $file . "<br />";
}

$dir->close();

It show:

filename: .
filename: ..
filename: json.php
filename: load.php
filename: script.php

Question: In the result, what does the first two items mean? . .. ?

Upvotes: 1

Views: 53

Answers (4)

mpm
mpm

Reputation: 20155

Single dot: . This represents current directory.

Double dot: .. This represents parent directory.

Upvotes: 0

Thanh Kh&#225;nh
Thanh Kh&#225;nh

Reputation: 641

. is current folder. .. is parent folder. Any folders on window and linux have two this.

If you want to read some type of file, you can use glob function of php.

$files = glob($dirpath.'/*.php');

Upvotes: 0

Brian
Brian

Reputation: 5028

Those are the current (.) and parent (..) directories.

You can get rid of them in following way:

$result = array_diff($result, array('..', '.'));

Upvotes: 2

kennypu
kennypu

Reputation: 6051

. and .. are "directories" which equate to the current directory, and parent directory, respectively.

for example, if you are in the ajax folder, json.php can also be accessed with ./json.php.

on the other hand, ../json.php will look for the file in the parent folder (same directory as the ajax folder).

Upvotes: 0

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