Removing an array from an array of arrays

Question

I have an array simmilar to this:

$scripts_to_load = array( 'css' => array( array( 'name'=>'core-css', 'path'=>get_bloginfo('stylesheet_url') ), array( 'name'=>'media-query-css', 'path'=>get_template_directory_uri() . '/assets/mediaquery.css' ), ), );

The above is how assets are stored.

I'd like to writer a function that takes type, css or js and a name, the type will find either css or js and then the name will be used to each for a key that matches the name key in one of the arrays, if it s found that array will be unset.

So what I have, is nothing accept: public function remove_asset($type, $name){}, so If I pass in remove_asset('css', 'media-query-css') the array should then look like:

$scripts_to_load = array( 'css' => array( array( 'name'=>'core-css', 'path'=>get_bloginfo('stylesheet_url') ), ), );

I am just not sure how to do that ... I can find the $type just fine, but its finding the $name that's giving me troubles and then unsetting that array.

Nicolai · Accepted Answer · 2013-10-19 17:05:56Z

This function does what you need:

function remove_asset($type, $name, &$scripts_to_load) { if( isset($scripts_to_load[$type] ) ) { foreach( $scripts_to_load[$type] as $key => $value ) { if( !empty( $value['name'] ) && $value['name'] == $name ) { unset( $scripts_to_load[$type][$key] ); } } } }

There is an control run:

$scripts_to_load = array( 'css' => array( array( 'name'=>'core-css', 'path'=>'stylesheet_url' ), array( 'name'=>'media-query-css', 'path'=>'/assets/mediaquery.css' ), ), ); print_r( $scripts_to_load ); echo "\n"; remove_asset('css', 'media-query-css', $scripts_to_load); print_r( $scripts_to_load ); echo "\n";

shadyyx · Accepted Answer · 2013-10-19 17:15:51Z

Try this (assuming assets are stored in object property):

public function remove_asset($type, $name){ if(isset($this->assets[$type][$name])) { unset($this->assets[$type][$name]); } }

This should remove the asset by given type and name.

Oh, and of course, the array of assets should look like this:

$this->assets = array( 'css' => array( 'css_name1' => 'path_to_css_1', 'css_name2' => 'path_to_css_2', ), 'js' => array( 'js_name1' => 'path_to_js_1', 'js_name2' => 'path_to_js_2', ) );

Now, if You call:

$this->remove_asset('css', 'css_name2'); $this->remove_asset('js', 'js_name1');

you should end up with:

$this->assets = array( 'css' => array( 'css_name1' => 'path_to_css_1', ), 'js' => array( 'js_name2' => 'path_to_js_2', ) );

EDIT: basically when working with asset properties You want more control to be stored, not only the path, so my suggested (end) array should be:

$this->assets = array( 'css' => array( 'css_name1' => array( 'src' => 'path_to_css_1', 'media' => 'screen', 'type' => 'text/css', ), 'css_name2' => array( 'src' => 'path_to_css_2', 'media' => 'print', 'type' => 'text/css', ), ), 'js' => array( 'js_name1' => array( 'src' => 'path_to_js_1', 'type' => 'text/javascript', ), ), 'icon' => array( 'favicon' => array( 'href' => 'path_to_favicon', 'rel' => 'shortcut icon', ), 'meta' => array(/* ... */) );

And the remove_asset function will still work.

this is completely wrong. the array I showed you is how the assets are stored. its the array attached to $scripts_to_load Its is not $key=>array, it is $key=>array(array(), array()). where $key is $type and $name is one of the keys in the array() of arrays(). please see the OP.
I am recommending to rework the assets array... In this case the removing/adding of assets is much easier and You need less loops when trying to load the assets...

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