(PHP 4, PHP 5, PHP 7, PHP 8)
basename — Returns trailing name component of path
Given a string containing the path to a file or directory, this function will return the trailing name component.
Note:
basename() operates naively on the input string, and is not aware of the actual filesystem, or path components such as "
..".
basename() is locale aware, so for it to see the
correct basename with multibyte character paths, the matching locale must
be set using the setlocale() function.
If path contains characters which are invalid for the
current locale, the behavior of basename() is undefined.
pathA path.
On Windows, both slash (/) and backslash
(\) are used as directory separator character. In
other environments, it is the forward slash (/).
suffix
If the name component ends in suffix this will also
be cut off.
Returns the base name of the given path.
Example #1 basename() example
<?php
echo "1) ".basename("/etc/sudoers.d", ".d").PHP_EOL;
echo "2) ".basename("/etc/sudoers.d").PHP_EOL;
echo "3) ".basename("/etc/passwd").PHP_EOL;
echo "4) ".basename("/etc/").PHP_EOL;
echo "5) ".basename(".").PHP_EOL;
echo "6) ".basename("/");
?>The above example will output:
1) sudoers 2) sudoers.d 3) passwd 4) etc 5) . 6)
It's a shame, that for a 20 years of development we don't have mb_basename() yet!
// works both in windows and unix
function mb_basename($path) {
if (preg_match('@^.*[\\\\/]([^\\\\/]+)$@s', $path, $matches)) {
return $matches[1];
} else if (preg_match('@^([^\\\\/]+)$@s', $path, $matches)) {
return $matches[1];
}
return '';
}Support of the $suffix parameter has changed between PHP4 and PHP5:
in PHP4, $suffix is removed first, and then the core basename is applied.
conversely, in PHP5, $suffix is removed AFTER applying core basename.
Example:
<?php
$file = "path/to/file.xml#xpointer(/Texture)";
echo basename($file, ".xml#xpointer(/Texture)");
?>
Result in PHP4: file
Result in PHP5: Texture)It might be useful to have a version of the function basename working with arrays too.
<?php
function a_basename( $file, $exts )
{
$onlyfilename = end( explode( "/", $file ) );
if( is_string( $exts ) )
{
if ( strpos( $onlyfilename, $exts, 0 ) !== false )
$onlyfilename = str_replace( $exts, "", $onlyfilename );
}
else if ( is_array( $exts ) )
{
// works with PHP version <= 5.x.x
foreach( $exts as $KEY => $ext )
{
$onlyfilename = str_replace( $ext, "", $onlyfilename );
}
}
return $onlyfilename ;
}
?>There is only one variant that works in my case for my Russian UTF-8 letters:
<?php
function mb_basename($file)
{
return end(explode('/',$file));
}
><
It is intented for UNIX serversIf you want the current path where youre file is and not the full path then use this :)
<?php
echo('dir = '.basename (dirname($_SERVER['PHP_SELF']),"/"));
// retuns the name of current used directory
?>
Example:
www dir: domain.com/temp/2005/january/t1.php
<?php
echo('dirname <br>'.dirname($_SERVER['PHP_SELF']).'<br><br>');
// returns: /temp/2005/january
?>
<?php
echo('file = '.basename ($PHP_SELF,".php"));
// returns: t1
?>
if you combine these two you get this
<?php
echo('dir = '.basename (dirname($_SERVER['PHP_SELF']),"/"));
// returns: january
?>
And for the full path use this
<?php
echo(' PHP_SELF <br>'.$_SERVER['PHP_SELF'].'<br><br>');
// returns: /temp/2005/january/t1.php
?>Here is a quick way of fetching only the filename (without extension) regardless of what suffix the file has.
<?php
// your file
$file = 'image.jpg';
$info = pathinfo($file);
$file_name = basename($file,'.'.$info['extension']);
echo $file_name; // outputs 'image'
?>Exmaple for exploding ;) the filename to an array
<?php
echo(basename ($PHP_SELF)."<br>"); // returnes filename.php
$file = basename ($PHP_SELF);
$file = explode(".",$file);
print_r($file); // returnes Array ( [0] => filename [1] => php )
echo("<br>");
$filename = basename(strval($file[0]),$file[1]);
echo($filename."<br>"); // returnes filename
echo(basename ($PHP_SELF,".php")."<br>"); // returnes filename
echo("<br>");
echo("<br>");
//show_source(basename ($PHP_SELF,".php").".php")
show_source($file[0].".".$file[1])
?>If your path has a query string appended, and if the query string contains a "/" character, then the suggestions for extracting the filename offered below don't work.
For instance if the path is like this:
http://www.ex.com/getdat.php?dep=n/a&title=boss
Then both the php basename() function, and also
the $_SERVER[QUERY_STRING] variables get confused.
In such a case, use:
<php
$path_with_query="http://www.ex.com/getdat.php?dep=n/a&title=boss";
$path=explode("?",$path_with_query);
$filename=basename($path[0]);
$query=$path[1];
?>I got a blank output from this code
$cur_dir = basename(dirname($_SERVER[PHP_SELF]))
suggested earlier by a friend here.
So anybody who wants to get the current directory path can use another technique that I use as
//suppose you're using this in pageitself.php page
$current_dir=dirname(realpath("pageitself.php"));
I hope it helps.There is a real problem when using this function on *nix servers, since it does not handle Windows paths (using the \ as a separator). Why would this be an issue on *nix servers? What if you need to handle file uploads from MS IE? In fact, the manual section "Handling file uploads" uses basename() in an example, but this will NOT extract the file name from a Windows path such as C:\My Documents\My Name\filename.ext. After much frustrated coding, here is how I handled it (might not be the best, but it works):
<?php
$newfile = basename($filen);
if (strpos($newfile,'\\') !== false) {
$tmp = preg_split("[\\\]",$newfile);
$newfile = $tmp[count($tmp) - 1];
}
?>
$newfile will now contain only the file name and extension, even if the POSTed file name included a full Windows path.There is a problem reading non-Latin characters in the file name if the locale is not configured correctly.
For example: instead of the name «ФЫВА-1234.doc», is displayed «-1234.doc».
Solution: rawurldecode(basename($full_name)).Additional note to Anonymous's mb_basename() solution: get rid of trailing slashes/backslashes!
<?php
function mb_basename($path) {
if (preg_match('@^.*[\\\\/]([^\\\\/]+)([\\\\/]+)?$@s', $path, $matches)) {
return $matches[1];
} else if (preg_match('@^([^\\\\/]+)([\\\\/]+)?$@s', $path, $matches)) {
return $matches[1];
}
return '';
}
echo mb_basename("/etc//"); # "etc"
?>A simple way to return the current directory:
$cur_dir = basename(dirname($_SERVER[PHP_SELF]))
since basename always treats a path as a path to a file, e.g.
/var/www/site/foo/ indicates /var/www/site as the path to file
fooonce you have extracted the basename from the full path and want to separate the extension from the file name, the following function will do it efficiently:
<?php
function splitFilename($filename)
{
$pos = strrpos($filename, '.');
if ($pos === false)
{ // dot is not found in the filename
return array($filename, ''); // no extension
}
else
{
$basename = substr($filename, 0, $pos);
$extension = substr($filename, $pos+1);
return array($basename, $extension);
}
}
?>to get the base url of my website
function url(){
$base_url = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';
$base_url .= '://'. $_SERVER['HTTP_HOST'];
$base_url .= str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
return $base_url;
}One line alternative for unicode filenames:
<?php
preg_replace('#.*?([^'.DIRECTORY_SEPARATOR.']*)'.DIRECTORY_SEPARATOR.'*$#', '$1', $path);@ lcvalentine at gmail dot com
>This is much simpler:
>$ext = strrchr( $filename, '.' );
Even though yours is shorter, you can also do:
$ext = end(explode(".", basename($fileThe previous example posted by "pvollma" didn't work out for me, so I modified it slightly:
<?php
function GetFileName($file_name)
{
$newfile = basename($file_name);
if (strpos($newfile,'\\') !== false)
{
$tmp = preg_split("[\\\]",$newfile);
$newfile = $tmp[count($tmp) - 1];
return($newfile);
}
else
{
return($file_name);
}
}
?>As already pointed out above, if a query string contains a '/' character, basename will not handle it well. But it can come really handy when you want to pass a url with query string to a funtion that copies/downloads the file using basename as local filename, by attaching an extra query to the end of the url:
<?php
$url = 'http://example.com/url?with=query_string';
basename($url); // url?with=query_string
$url = $url . '&filename_for_basename=/desired_filename.ext';
basename($url); // desired_filename.ext
?>
Note: you can use the filename from the HTTP header (if present) to get the file with it's original filename.My opinion is, remove the $suffix first, and then apply splitting the core basename ( PHP 4 ):
/*
* From stephane.fidanza@gmail.com:
*
* PHP 4: $suffix is removed first, and then the core basename is applied.
* PHP 5: $suffix is removed after applying the core basename.
*
* (c) Paulus Gandung Prakosa (rvn.plvhx@gmail.com)
*/
if ( !function_exists('php4_backward_compat_basename') )
{
function php4_backward_compat_basename($path, $suffix = '')
{
if ( $suffix !== '' ) {
$fixed_path = substr($path, 0, strlen($path) - strlen($suffix));
$fixed_basename = explode('/', $fixed_path);
}
return ( isset($fixed_basename) ? array_pop($fixed_basename) : array_pop(explode('/', $path)) );
}
}