pathinfo

(PHP 4 >= 4.0.3, PHP 5, PHP 7, PHP 8)

pathinfo — Restituisce informazioni su un percorso di file

Descrizione

pathinfo(string $path, int $options = ?): array

pathinfo() restituisce un vettore associativo contenente informazioni riguardo path. Nel vettore vegono riportati i seguenti elementi: dirname, basename e extension.

Si può specificare quali elementi vengano restituiti con parametri opzionali options. E' composto da PATHINFO_DIRNAME, PATHINFO_BASENAME e PATHINFO_EXTENSION. Assume per defalut la restituzione di tutti gli elementi.

Example #1 pathinfo() Example

<?php 
       $path_parts = pathinfo('/www/htdocs/index.html');
       echo $path_parts['dirname'], "\n"; 
       echo $path_parts['basename'], "\n"; 
       echo $path_parts['extension'], "\n"; 
       
       ?>

Produrrà:

 
 /www/htdocs 
 index.html 
 html

Nota:
Per informazioni su come recuperare il path corrente, leggere la sezione su variabili riservate predefinite.

Vedere anche dirname(), basename(), parse_url() e realpath().

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User Contributed Notes 4 notes

down

Lori ¶

6 years ago


Simple example of pathinfo and array destructuring in PHP 7:
<?php
[ 'basename' => $basename, 'dirname' => $dirname ] = pathinfo('/www/htdocs/inc/lib.inc.php');

var_dump($basename, $dirname);

// result:
// string(11) "lib.inc.php"
// string(15) "/www/htdocs/inc"
?>

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urvi ¶

2 years ago


about the path, there are one thing you should note :
On Windows, both slash (/) and backslash (\) are used as directory separator character. In other environments, it is the forward slash (/).  (this explain is from basename() function part https://www.php.net/manual/en/function.basename.php)
example:
<?php
$path = "https://urvidutta.com /a\b\c\filename.pdf";

echo pathinfo($pdfUrl, PATHINFO_BASENAME);  //get basename
//output
//on window:  result is filename.pdf
//on Linux: result is a\b\c\filename.pdf (that is may not your expect)

//so in order to get same result in different system.  i will do below first.
$path = str_replace($path, '\\', '/'); //convert '\'  to '/'
?>

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Pietro Baricco ¶

12 years ago


Use this function in place of pathinfo to make it work with UTF-8 encoded file names too

<?php
function mb_pathinfo($filepath) {
    preg_match('%^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$%im',$filepath,$m);
    if($m[1]) $ret['dirname']=$m[1];
    if($m[2]) $ret['basename']=$m[2];
    if($m[5]) $ret['extension']=$m[5];
    if($m[3]) $ret['filename']=$m[3];
    return $ret;
}
?>

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n0dalus ¶

19 years ago


If a file has more than one 'file extension' (seperated by periods), the last one will be returned.
For example:
<?php
$pathinfo = pathinfo('/dir/test.tar.gz');
echo 'Extension: '.$pathinfo['extension'];
?>
will produce:
Extension: gz

and not tar.gz

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