How to use pathinfo() to obtain path array in PHP

In the process of using PHP, the path of the file is more commonly used, so how to put the path information of the file into an array for better use? ? We mainly use the pathinfo() function.

The syntax of pathinfo:

pathinfo ( string $path , [int $options] )

• $path: The path to be parsed
  

• $options:

If empty: Return all path information.

If there is a value: PATHINFO_DIRNAME, PATHINFO_BASENAME, PATHINFO_EXTENSION or PATHINFO_FILENAME.

• Return value: If $option is empty, an associative array containing path information is returned. If not empty, returns a string (content depends on $options).

1. Only the parameter $path:

<?php
    $path="/home/ramki/ramki.pdf";
    echo "<pre class="brush:php;toolbar:false">";
    print_r(pathinfo($path));
?>

The output result is as follows:

Array
(
    [dirname] => /home/ramki
    [basename] => ramki.pdf
    [extension] => pdf
    [filename] => ramki
)

2.If $options=PATHINFO_DIRNAME

<?php
    $path="/home/ramki/ramki.pdf";
    echo "<pre class="brush:php;toolbar:false">";
    print_r(pathinfo($path,PATHINFO_DIRNAME));
    // 输出结果：/home/ramki
?>

3.If $options=PATHINFO_BASENAME

<?php
    $path="/home/ramki/ramki.pdf";
    echo "<pre class="brush:php;toolbar:false">";
    print_r(pathinfo($path,PATHINFO_BASENAME));
    // ramki.pdf
?>

4.If $options=PATHINFO_EXTENSION

<?php
    $path="/home/ramki/ramki.pdf";
    echo "<pre class="brush:php;toolbar:false">";
    print_r(pathinfo($path,PATHINFO_EXTENSION));
    // pdf
?>

5.If $options=PATHINFO_FILENAME

##​ This constant only applies to PHP>=5.2.0

<?php
    $path="/home/ramki/ramki.pdf";
    echo "<pre class="brush:php;toolbar:false">";
    print_r(pathinfo($path,PATHINFO_FILENAME));
    // ramki
?>

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