PHP - Check if a file exists in a folder

Question

I wanna check if there any image on a folder from my server. I have this little function in PHP but is not working and I don't know why:

$path = 'folder/'.$id;
function check($path) {
    if ($handle = opendir($path)) {
        $array = array();
        while (false !== ($file = readdir($handle))) {
            if ($file != "." && $file != ".." && count > 2) {
                echo "folder not empty";
            } else {
                echo "folder empty";
            }
        }
    }
    closedir($handle);
}

Any help will be appreciated, thanks in advance.

what is the count variable (I'm assuming)? Does it ever change? — Marek Karbarz
– Marek Karbarz, Commented Nov 15, 2010 at 19:04

netcoder · Accepted Answer · 2010-11-15 19:06:54Z

5

It does not work because count is coming from nowhere. Try this instead:

$path = 'folder/'.$id;
function check($path) {
    $files = glob($path.'/*');
    echo empty($files) ? "$path is empty" : "$path is not empty";
}

answered Nov 15, 2010 at 19:06

netcoder

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4 Comments

dododedodonl Over a year ago

Vars out of quotes... Can debug much of your code ;) pfz.nl/wiki/variabelen-buiten-quotes (dutch)

dododedodonl Over a year ago

Just try to translate it with google translate... It is a article that explains the (bad) behavior of php with: "$path is empty"

netcoder Over a year ago

I wasn't asking about the article, I got that part. It's just your comment that doesn't make sense. Besides, there's nothing wrong with PHP's variable expansion and parsing... Perl does it, Bash does it, a lot of other do it as well. It's only wrong when you use it wrong.

dododedodonl Over a year ago

I didn't say something is wrong... (I'm thinking to much in my native language.) My comment is on the "$path is empty" and "$path is not empty" part of your answer... If you build a whole system, using double quotes " and variables inside these quotes "$path" then your system will slow down when you have much refreshes... Use ' instead of " and $path.' is empty'. This can give your system a boost if it is big enough...

dododedodonl · Accepted Answer · 2010-11-15 18:59:07Z

1

Try this function: http://www.php.net/glob

answered Nov 15, 2010 at 18:59

dododedodonl

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Comments

Jeff Cashion PhD · Accepted Answer · 2013-03-28 20:14:59Z

1

Try This:

$path = 'folder/'.$id;
function check($path) {
    if (is_dir($path)) {
        $contents = scandir($path);
        if(count($contents) > 2) {
            echo "folder not empty";
        } else {
            echo "folder empty";
        }
    }
    closedir($handle);
}

It counts the contents of the path. If there are more than two items, then its not empty. The two items we are ignoring are "." and "..".

answered Mar 28, 2013 at 20:14

Jeff Cashion PhD

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Comments

Raghav · Accepted Answer · 2019-01-28 11:28:37Z

1

Step 1: $query = select * from your_table where id=$id;
Step 2: $path=$query['path_column'];
Step 3: if($path!=null&&file_exit($path)&&$dir=opendir($path)){
           while (($file = readdir($dir )) !== false)
            {
                if ($file == '.' || $file == '..') 
                {
                    continue;
                }
                if($file) // file get 
                { 
                    $allowedExts = array("jpg");
                    $extension = pathinfo($file, PATHINFO_EXTENSION);
                    if(in_array($extension, $allowedExts))
                    $file[]=$file;
                }
                $data[file_name'] = $file;
            }
             closedir($dir);
        }

edited Jan 28, 2019 at 11:28

answered Jan 15, 2019 at 6:41

Raghav

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