PHP pathinfo function

pathinfo Introduction

Function: Returns file path information

Syntax：

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

Returns an associative array containing path information. Whether an associative array or a string is returned depends on options.

pathinfo parameter

##pathThe path to be parsed. options

	If specified, the specified element will be returned; they include: PATHINFO_DIRNAME, PATHINFO_BASENAME and PATHINFO_EXTENSION or PATHINFO_FILENAME. If options are not specified, the default is to return all units.

pathinfo return value

If no options are passed in, it will Returns an array containing the following elements: dirname, basename and extension (if any), and filename.

If the path has no extension, no extension elements will be returned.

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

pathinfo example

Usage example one

<?php
$pathinfo = pathinfo(&#39;/libs/models/user_model.php&#39;);

echo $pathinfo[&#39;dirname&#39;], PHP_EOL;
echo $pathinfo[&#39;basename&#39;], PHP_EOL;
echo $pathinfo[&#39;extension&#39;], PHP_EOL;
echo $pathinfo[&#39;filename&#39;], PHP_EOL;
?>

Output result:

/libs/models
user_model.php
php
user_model

Usage example two

<?php
[ &#39;basename&#39; => $basename, &#39;dirname&#39; => $dirname ] = pathinfo(&#39;/libs/models/article_model.php&#39;);

var_dump($basename, $dirname);
?>

Output result:

string(17) "article_model.php"
string(12) "/libs/models"

Use example three

<?php

echo pathinfo(&#39;/libs/models/article_model.php&#39;, PATHINFO_BASENAME), PHP_EOL;
echo pathinfo(&#39;/libs/models/article_model.php&#39;, PATHINFO_FILENAME), PHP_EOL;
echo pathinfo(&#39;/libs/models/article_model.php&#39;, PATHINFO_EXTENSION), PHP_EOL;

?>

Output result:

article_model.php
article_model
php

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