PHP Namespace declaration in other file....

marianidiego

My web site uses in 98% of the pages the Datatables.....

For this reason I wanted to lighten the code by putting the loading of the library in a separate file:

init.php

....
    // DataTables PHP library and database connection
    include_once( __DIR__ . "/Editor-PHP/lib/DataTables.php" );

    // Alias Editor classes so they are easy to use
    use DataTables\Editor,
        DataTables\Editor\Field,
        DataTables\Editor\Format,
        DataTables\Editor\Mjoin,
        DataTables\Editor\Options,
        DataTables\Editor\Upload,
        DataTables\Editor\Validate,
        DataTables\Editor\ValidateOptions;
....

Now my web page is shorter and more readable, but it doesn't work....

mypage.php

include_once("class/init.php");

            // Build our Editor instance and process the data coming from _POST
            Editor::inst( $db, 'examiners', 'examiners_id' )
                ->fields(
                    Field::inst( 'examiners.examiners_id' ) ->set( false ),             
                    Field::inst( 'examiners.image' )

The error generated is as follows:

<b>Error:</b> 0 - Class 'Editor' not found in file /home/sites/7a/3/30106c0d60/public_html/snr462638/admin/dist/cont/tpl_lista_examiners/examiners.php [34]<br>Error Object
(
[message:protected] => Class 'Editor' not found

How can I solve the problem?

Regards Diego

allan

Hi Diego,

That's how namespaces work in PHP. Whenever you want to use the use aliased namespaces, you need to include them in that specific file.

My understanding is that PHP doesn't allow wildcard loading of namespaces, so you can't just do use DataTables\Editor and have all its classes imported like you would in C#. It is frustrating to me too!

Allan

marianidiego

OK, thanks

Itrac

Since PHP 7 you can group use declarations:

use DataTables\Editor;
use DataTables\Editor\{Field, Format, Mjoin, Options, Upload, Validate, ValidateOptions};

This makes it a little shorter.

allan

OOO! I like that. Many thanks

Allan