How to get the $atts of a shortcode

Question

I have the following shortcode:

[video width="400" height="400" mp4="http://xxxx.xxxx.xxx/uploads/2014/06/Facebook.mp4"][/video]

I need to get every single atts a single variable, I mean, I need something like this

$width = 400
$height = 400
$file = http://xxxx.xxxx.xxx/uploads/2014/06/Facebook.mp4

does anybody have done something like this before? (I'm very newbie in WP)

Answer 1

Straight from the Shortcode API page on the Codex:

The raw $atts array may include any arbitrary attributes that are specified by the user.

That is to say, the $atts parameter passed to your shortcode callback function contains all the attributes in an associative array.

Answer 2

I think you are looking for the PHP function extract()

function your_shortcode_callback( $atts ) {

    // compare incoming $atts against defaults and extract out 
    extract( shortcode_atts( array(
        'width'         => '12',
        'height'        => '4',
        'file'      => ''
    ), $atts ) );

    if( ! $file )
        return '';

    // do something with the $width, $height, and $file variables

}