PHP Get File Name Without File Extension

Question

I have this code:

    function ShowFileExtension($filepath)
{
    preg_match('/[^?]*/', $filepath, $matches);
    $string = $matches[0];

    $pattern = preg_split('/\./', $string, -1, PREG_SPLIT_OFFSET_CAPTURE);

    if(count($pattern) > 1)
    {
        $filenamepart = $pattern[count($pattern)-1][0];
        preg_match('/[^?]*/', $filenamepart, $matches);
        return strtolower($matches[0]);
    }
}

If I have a file named my.zip, this function returns .zip.

Now I want to do the reverse, I want the function to return my without the extension.

tip:the file is not in the server its just name from variable

Answer 1

No need for all that. Check out pathinfo(), it gives you all the components of your path.

Example from the manual:

<?php
$path_parts = pathinfo('/www/htdocs/index.html');

echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // since PHP 5.2.0
?>

and alternatively you can get only certain parts like

echo pathinfo('/www/htdocs/index.html', PATHINFO_EXTENSION); // outputs html

Answer 2

As an alternative to pathinfo(), you can use

• basename() — Returns filename component of path

Example from PHP manual

$path = "/home/httpd/html/index.php";
$file = basename($path);         // $file is set to "index.php"
$file = basename($path, ".php"); // $file is set to "index"

You have to know the extension to remove it in advance though.

However, since your question suggests you have the need for getting the extension and the basename, I'd vote Pekka's answer as the most useful one, because it will give you any info you'd want about the path and file with one single native function.

Answer 3

@Gordon basename will work fine if you know the extension, if you dont you can use explode:

$filename = current(explode(".", $file));