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Rechercher une fonction PHP

pathinfo

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

pathinfo — Returns information about a file path

Description

pathinfo ( string $path [, int $options = PATHINFO_DIRNAME | PATHINFO_BASENAME | PATHINFO_EXTENSION | PATHINFO_FILENAME ] ) : mixed

pathinfo() returns information about path: either an associative array or a string, depending on options.

Note:

For information on retrieving the current path info, read the section on predefined reserved variables.

Caution

pathinfo() is locale aware, so for it to parse a path containing multibyte characters correctly, the matching locale must be set using the setlocale() function.

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Parameters

path

The path to be parsed.

options

If present, specifies a specific element to be returned; one of PATHINFO_DIRNAME, PATHINFO_BASENAME, PATHINFO_EXTENSION or PATHINFO_FILENAME.

If options is not specified, returns all available elements.

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Return Values

If the options parameter is not passed, an associative array containing the following elements is returned: dirname, basename, extension (if any), and filename.

Note:

If the path has more than one extension, PATHINFO_EXTENSION returns only the last one and PATHINFO_FILENAME only strips the last one. (see first example below).

Note:

If the path does not have an extension, no extension element will be returned (see second example below).

Note:

If the basename of the path starts with a dot, the following characters are interpreted as extension, and the filename is empty (see third example below).

If options is present, returns a string containing the requested element.

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Changelog

Version Description
5.2.0 The PATHINFO_FILENAME constant was added.

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Examples

Example #1 pathinfo() Example

<?php
$path_parts = pathinfo('/www/htdocs/inc/lib.inc.php');

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
?>

The above example will output:

/www/htdocs/inc
lib.inc.php
php
lib.inc

Example #2 pathinfo() example showing difference between null and no extension

<?php
$path_parts = pathinfo('/path/emptyextension.');
var_dump($path_parts['extension']);

$path_parts = pathinfo('/path/noextension');
var_dump($path_parts['extension']);
?>

The above example will output something similar to:

string(0) ""

Notice: Undefined index: extension in test.php on line 6
NULL

Example #3 pathinfo() example for a dot-file

<?php
print_r(pathinfo('/some/path/.test'));
?>

The above example will output something similar to:

Array
(
    [dirname] => /some/path
    [basename] => .test
    [extension] => test
    [filename] => 
)

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See Also

  • dirname() - Returns a parent directory's path
  • basename() - Returns trailing name component of path
  • parse_url() - Parse a URL and return its components
  • realpath() - Returns canonicalized absolute pathname

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-pathinfo.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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