How to filter an array?

[TiagoSilva]

Hey guys,

Ive spent weeks trying to filter this array. Can someone help me? I want to filter and display only user ID´s or only emails. How do I do that?




Array ( [2] => WP_User Object ( [data] => stdClass Object ( [iD] => 3 [user_login] => test [user_pass] => $P$FSBSFByN.kDA20C2B1HLYtossdD1 [user_nicename] => test [user_email] => noreply1@test.com [user_url] => [user_registered] => 2016-06-28 06:41:10 [user_activation_key] => [user_status] => 0 [display_name] => Albert Einstein ) [iD] => 3 [caps] => Array ( [subscriber] => 1 ) [cap_key] => wp_capabilities [roles] => Array ( [0] => subscriber ) [allcaps] => Array ( [read] => 1 [level_0] => 1 [subscriber] => 1 ) [filter] => ) [3] => WP_User Object ( [data] => stdClass Object ( [iD] => 1 [user_login] => Almert [user_pass] => $P$BXkFcAfewww771GjlUxmm.696EB0 [user_nicename] => Goof [user_email] => tiadgw3@hotmail.com [user_url] => [user_registered] => 2016-06-25 09:54:12 [user_activation_key] => [user_status] => 0 [display_name] => tiadgw3 ) [iD] => 1 [caps] => Array ( [administrator] => 1 ) [cap_key] => wp_capabilities [roles] => Array ( [0] => administrator ) [allcaps] => Array ( [switch_themes] => 1 [edit_themes] => 1 [activate_plugins] => 1 [edit_plugins] => 1 [edit_users] => 1 [edit_files] => 1 [manage_options] => 1 [moderate_comments] => 1 [manage_categories] => 1 [manage_links] => 1 [upload_files] => 1 [import] => 1 [unfiltered_html] => 1 [edit_posts] => 1 [edit_others_posts] => 1 [edit_published_posts] => 1 [publish_posts] => 1 [edit_pages] => 1 [read] => 1 [level_10] => 1 [level_9] => 1 [level_8] => 1 [level_7] => 1 [level_6] => 1 [level_5] => 1 [level_4] => 1 [level_3] => 1 [level_2] => 1 [level_1] => 1 [level_0] => 1 [edit_others_pages] => 1 [edit_published_pages] => 1 [publish_pages] => 1 [delete_pages] => 1 [delete_others_pages] => 1 [delete_published_pages] => 1 [delete_posts] => 1 [delete_others_posts] => 1 [delete_published_posts] => 1 [delete_private_posts] => 1 [edit_private_posts] => 1 [read_private_posts] => 1 [delete_private_pages] => 1 [edit_private_pages] => 1 [read_private_pages] => 1 [delete_users] => 1 [create_users] => 1 [unfiltered_upload] => 1 [edit_dashboard] => 1 [update_plugins] => 1 [delete_plugins] => 1 [install_plugins] => 1 [update_themes] => 1 [install_themes] => 1 [update_core] => 1 [list_users] => 1 [remove_users] => 1 [promote_users] => 1 [edit_theme_options] => 1 [delete_themes] => 1 [export] => 1 [edit_newsletters] => 1 [publish_newsletters] => 1 [delete_newsletters] => 1 [edit_others_newsletters] => 1 [delete_others_newsletters] => 1 [duplicate_newsletters] => 1 [duplicate_others_newsletters] => 1 [mymail_edit_autoresponders] => 1 [mymail_edit_others_autoresponders] => 1 [mymail_change_template] => 1 [mymail_save_template] => 1 [mymail_see_codeview] => 1 [mymail_change_plaintext] => 1 [mymail_edit_subscribers] => 1 [mymail_add_subscribers] => 1 [mymail_delete_subscribers] => 1 [mymail_edit_forms] => 1 [mymail_add_forms] => 1 [mymail_delete_forms] => 1 [mymail_manage_subscribers] => 1 [mymail_import_subscribers] => 1 [mymail_import_wordpress_users] => 1 [mymail_export_subscribers] => 1 [mymail_bulk_delete_subscribers] => 1 [mymail_add_lists] => 1 [mymail_edit_lists] => 1 [mymail_delete_lists] => 1 [mymail_manage_templates] => 1 [mymail_edit_templates] => 1 [mymail_delete_templates] => 1 [mymail_upload_templates] => 1 [mymail_update_templates] => 1 [mymail_dashboard_widget] => 1 [mymail_manage_capabilities] => 1 [manage_sws] => 1 [rcp_view_members] => 1 [rcp_manage_members] => 1 [rcp_view_levels] => 1 [rcp_manage_levels] => 1 [rcp_view_discounts] => 1 [rcp_manage_discounts] => 1 [rcp_view_payments] => 1 [rcp_manage_payments] => 1 [rcp_manage_settings] => 1 [rcp_export_data] => 1 [rcp_view_help] => 1 [modal_login_settings] => 1 [administrator] => 1 ) [filter] => ) )

[requinix]

"Weeks"? Really?

 

Array (

Whatever variable you dumped is an array,

[2] => WP_User Object (
[3] => WP_User Object (

containing WP_User objects,

[data] => stdClass Object (

with "data" properties that are plain stdClass objects,

[ID] => 3
[user_email] => noreply1@test.com

that contain "ID" and "user_email" properties.

 

foreach ($variable as $user) {
	echo "ID: {$user->data->ID}, Email: {$user->data->user_email}";
}

[TiagoSilva]

Hello,

 

Thanks for the help. So it starts like this:

 

 <?php
$userlist = get_users_who_favorited_post($post_id = null, $site_id = null); <--- gives the array above

 

what should I type here?

print_r($userlist)
?>

 

 

And I want a formula to get only ID´s .....and another formula to obtain only emails...

 

Thanks

Edited July 25, 2016 by TiagoSilva

[requinix]

I showed you code. You need to make the mental leap to understand what it is and what it does.

 

It's only three lines. More of a step than a leap.

[TiagoSilva]

Hello,

 

You did it! =)

 

<?php
$userlist = get_users_who_favorited_post($post_id = null, $site_id = null);
foreach ($userlist as $user) {
echo "{$user->data->ID}";
}
?>

 

 

Another question. I want to echo only the first ID number .....or only que second ID number ....how can I do that?

[TiagoSilva]

Hello,

I tried with substr ...but no success until now..

<?php
$userlist = get_users_who_favorited_post($post_id = null, $site_id = null);
foreach ($userlist as $user) {
$int="{$user->data->ID}"; //returns 1234 (Example)
}
echo substr($int, 1, 1);

?>

its not working. is there an alternative to substr?? any sugestions?

Thanks,

[cyberRobot]

To get the first element in an array, you could use array_shift(). More information can be found here:

http://php.net/manual/en/function.array-shift.php

 

With that, you probably don't need the foreach loop. But I'm not sure if that solves the second part of your question.

[TiagoSilva]

Hey Guys,

Can someone give a little help?

I found that it returns 2 arrays. For example Array ( [0] => 3 ) Array ( [0] => 1 ) ....thats why the substr() is not working. Because if I tried to get the first element it would give me "31". And the second element would be "empty".

<?php
$userlist = get_users_who_favorited_post($post_id = null, $site_id = null);
foreach ($userlist as $user) {
$int= "{$user->data->ID}";  // 31   (not a sequence like I thought)
$arr1 = str_split($int);  
print_r($arr1);    //Array ( [0] => 3 ) Array ( [0] => 1 )
}
?>


I want to obtain the first element "3" .....and the second element "1" ....separately ...... how can i do this?

Thanks,

 

Edited July 27, 2016 by TiagoSilva