Monthly Archives: July 2018

WordPress Plugin Admin Page Unwanted Scroll

I was working on a custom plugin for an important client today and one of the plugin's admin pages would scroll half way down the page every time I landed on it and I couldn't figure out why at first!

Long story short, I found out what was causing it was an inline JavaScript block of code, so If anyone has this issue in a WordPress admin page while making a plugin, try getting rid of the JavaScript and it should stop the page from scrolling as it did in my case.

If you experience something similar, please mention how you solved it in the comments.

MailChimp API

I've been doing a lot of work with the MailChimp API lately and figured it would be good to have a page dedicated to it here for future reference because it's not very well documented online anywhere else... Hoping this will help some people who also have to use MailChimp's API.

Understanding MailChimp Lists and the API

If you've ever dealt with MailChimp, you know that it is based on lists which can be segmented, grouped and managed all from the API as needed. Next I will demonstrate how to get a list of MailChimp lists and information on each list that exists.

Getting MailChimp List Information from API

Here's the code I created to get all MailChimp Lists and information on each list from the MailChimp API using PHP code:

<h2>MailChimp List Info:</h2>
<?php
//Get API key :

$mcAPIkey ='Enter_your_own_API_key_HERE';
//get info regarding MC lists
//use following url 'https://usX.api.mailchimp.com/3.0/lists'

$dc = substr( $mcAPIkey, strpos( $mcAPIkey, '-' ) + 1 ); // datacenter, it is the part of your api key - us5, us8 etc
$args = array(
     'headers' => array(
        'Authorization' => 'Basic ' . base64_encode( 'user:'. $mcAPIkey )
    )
);

$response = wp_remote_get( 'https://'.$dc.'.api.mailchimp.com/3.0/lists/', $args );
$body = json_decode(wp_remote_retrieve_body($response));

$rcode = wp_remote_retrieve_response_code($response);
$tot_itms = $body->total_items;
echo "Response code was $rcode ...$tot_itms items found!<br /><hr />";
echo "<pre><code>";
print_r($body);
echo "</code></pre><hr />";
?>

The above code would return something like this for a MailChimp account that has one saved list:

MailChimp List Info:

Response code was 200 ...1 items found!


stdClass Object
(
    [lists] => Array
        (
            [0] => stdClass Object
                (
                    [id] => xxxxxxxxx
                    [web_id] => xxxxxx
                    [name] => List Name
                    [contact] => stdClass Object
                        (
                            [company] => Company Name
                            [address1] => 1001 Your Road
                            [address2] => 
                            [city] => Adolphus
                            [state] => KY
                            [zip] => 42120
                            [country] => US
                            [phone] => 
                        )

                    [permission_reminder] => You signed up to learn more about how our team can better serve you.
                    [use_archive_bar] => 1
                    [campaign_defaults] => stdClass Object
                        (
                            [from_name] => First Last
                            [from_email] => your_email@domain.com
                            [subject] => 
                            [language] => en
                        )

                    [notify_on_subscribe] => 
                    [notify_on_unsubscribe] => 
                    [date_created] => 2018-02-25T02:01:38+00:00
                    [list_rating] => 0
                    [email_type_option] => 
                    [subscribe_url_short] => http://eepurl.com/dBXF4r
                    [subscribe_url_long] => https://yourcompany.us13.list-manage.com/subscribe?u=bf405c1xxxxxxxxb48df64c3&id=xxxxxxxxxx
                    [beamer_address] => us13-5df785xxxxx-xxx@inbound.mailchimp.com
                    [visibility] => pub
                    [double_optin] => 1
                    [marketing_permissions] => 
                    [modules] => Array
                        (
                        )

                    [stats] => stdClass Object
                        (
                            [member_count] => 3
                            [unsubscribe_count] => 0
                            [cleaned_count] => 0
                            [member_count_since_send] => 5
                            [unsubscribe_count_since_send] => 0
                            [cleaned_count_since_send] => 0
                            [campaign_count] => 2
                            [campaign_last_sent] => 
                            [merge_field_count] => 4
                            [avg_sub_rate] => 1
                            [avg_unsub_rate] => 0
                            [target_sub_rate] => 0
                            [open_rate] => 0
                            [click_rate] => 0
                            [last_sub_date] => 2018-04-28T20:26:38+00:00
                            [last_unsub_date] => 
                        )

                    [_links] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [rel] => self
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/edxxxxxxxxx
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Response.json
                                )

                            [1] => stdClass Object
                                (
                                    [rel] => parent
                                    [href] => https://us13.api.mailchimp.com/3.0/lists
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists.json
                                )

                            [2] => stdClass Object
                                (
                                    [rel] => update
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/edxxxxxxxxx
                                    [method] => PATCH
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Response.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/PATCH.json
                                )

                            [3] => stdClass Object
                                (
                                    [rel] => batch-sub-unsub-members
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxx
                                    [method] => POST
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/BatchPOST-Response.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/BatchPOST.json
                                )

                            [4] => stdClass Object
                                (
                                    [rel] => delete
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxxx
                                    [method] => DELETE
                                )

                            [5] => stdClass Object
                                (
                                    [rel] => abuse-reports
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxx/abuse-reports
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Abuse/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Abuse.json
                                )

                            [6] => stdClass Object
                                (
                                    [rel] => activity
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxx/activity
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Activity/Response.json
                                )

                            [7] => stdClass Object
                                (
                                    [rel] => clients
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxxxx/clients
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Clients/Response.json
                                )

                            [8] => stdClass Object
                                (
                                    [rel] => growth-history
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxxxxxxx/growth-history
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Growth/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Growth.json
                                )

                            [9] => stdClass Object
                                (
                                    [rel] => interest-categories
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxx/interest-categories
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/InterestCategories/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/InterestCategories.json
                                )

                            [10] => stdClass Object
                                (
                                    [rel] => members
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxx/members
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Members/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Members.json
                                )

                            [11] => stdClass Object
                                (
                                    [rel] => merge-fields
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxx/merge-fields
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/MergeFields/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/MergeFields.json
                                )

                            [12] => stdClass Object
                                (
                                    [rel] => segments
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxxx/segments
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Segments/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Segments.json
                                )

                            [13] => stdClass Object
                                (
                                    [rel] => webhooks
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxx/webhooks
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Webhooks/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Webhooks.json
                                )

                            [14] => stdClass Object
                                (
                                    [rel] => signup-forms
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxxx/signup-forms
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/SignupForms/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/SignupForms.json
                                )

                            [15] => stdClass Object
                                (
                                    [rel] => locations
                                    [href] => https://us13.api.mailchimp.com/3.0/lists/xxxxxxxxxxx/locations
                                    [method] => GET
                                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Locations/CollectionResponse.json
                                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists/Locations.json
                                )

                        )

                )

        )

    [total_items] => 1
    [_links] => Array
        (
            [0] => stdClass Object
                (
                    [rel] => self
                    [href] => https://us13.api.mailchimp.com/3.0/lists
                    [method] => GET
                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/CollectionResponse.json
                    [schema] => https://us13.api.mailchimp.com/schema/3.0/CollectionLinks/Lists.json
                )

            [1] => stdClass Object
                (
                    [rel] => parent
                    [href] => https://us13.api.mailchimp.com/3.0/
                    [method] => GET
                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Root/Response.json
                )

            [2] => stdClass Object
                (
                    [rel] => create
                    [href] => https://us13.api.mailchimp.com/3.0/lists
                    [method] => POST
                    [targetSchema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/Response.json
                    [schema] => https://us13.api.mailchimp.com/schema/3.0/Definitions/Lists/POST.json
                )

        )

)

How to Count Iterations of a PHP Function

I find myself having to do this all the time! I need to know how many times a function is running and for some strange reason, I almost never remember how to do it correctly. That's why I am posting this simple trick on my blog, so others can find it easily and so I can look at how I did it next time I need to do it again!

Here's a simple example to illustrate the need here:

<?php
function runMe(){

$i = 0;

$i++;

echo "$i<br>";

}

//If you were to execute the above function in a loop like this:

for($x=0;$x<10;$x++){

runMe();

}
?>

The output of the above would be:

1
1
1
1
1
1
1
1
1
1

Not what you wanted? or expected? Often we need it to output something like this instead:

1
2
3
4
5
6
7
8
9...

Static Variable to the Rescue

In comes what is know in PHP as Static Variables.  Here's a quick code example that should make you understand how they work:

<?php
function countRuns(){

static $c = 0;

$c++;

echo "$c<br />";

}

//Then, Executing the countRuns function in a for loop will increment the number printed ea. time:

for($x=0;$x<10;$x++){

countRuns();

}
?>

If you were to run the above tested code in your browser you would get the following output:

1
2
3
4
5
6
7
8
9
10

That's what I was looking for! okay, so that's how it's done. I hope this helps someone else besides me.