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How to get only images using scandir in PHP?

Is there any way to get only images with extensions jpeg, png, gif etc while using

Code:

$dir    = '/tmp';

$files1 = scandir($dir);

You can use glob

Code:

$images = glob('/tmp/*.{jpeg,gif,png}', GLOB_BRACE);

If you need this to be case-insensitive, you could use a DirectoryIterator in combination with a RegexIterator or pass the result of scandir to array_map and use a callback that filters any unwanted extensions. Whether you use strpos, fnmatch or pathinfo to get the extension is up to you.

I would loop through the files and look at their extensions:

Code:

$dir = '/tmp';

$dh  = opendir($dir);

while (false !== ($fileName = readdir($dh))) {

    $ext = substr($fileName, strrpos($fileName, '.') + 1);

    if(in_array($ext, array("jpg","jpeg","png","gif")))

        $files1[] = $fileName;

}

Here is a simple way to get only images. Works with PHP >= 5.2 version. The collection of extensions are in lowercase, so making the file extension in loop to lowercase make it case insensitive.

Code:

// image extensions

$extensions = array('jpg', 'jpeg', 'png', 'gif', 'bmp');



// init result

$result = array();



// directory to scan

$directory = new DirectoryIterator('/dir/to/scan/');



// iterate

foreach ($directory as $fileinfo) {

    // must be a file

    if ($fileinfo->isFile()) {

        // file extension

        $extension = strtolower(pathinfo($fileinfo->getFilename(), PATHINFO_EXTENSION));

        // check if extension match

        if (in_array($extension, $extensions)) {

            // add to result

            $result[] = $fileinfo->getFilename();

        }

    }

}

// print result

print_r($result);

I hope this is useful if you want case insensitive and image only extensions.