11. May 2019

portalZINE goes Multi-Language

Since I started in 2002, all iterations of portalZINE have been pure english content websites. You can read about the why on my services page.

I had potential customers in Germany complain about that a lot over the past few years. But your own website often suffers, while your customers get all the attention. That is how it is and how it should be!

Creating Multi – Language websites has been part of my services & portfolio for years, with an extreme application setup handling 13 languages in 2014 for the soccer world cup.

Multi-Language setups have come a long way and it was time to showcase that on my own setup as well. Not only to calm those potential customers, but to testdrive new functionality and possibilities on my own setup. portalZINE has always been my testlab for stability and new feature sets.

Most of my static pages are available in English and German now, the blog itself will remain pure English.

Need help setting up a multi language website, get in touch!

Cheers
Alex

10. May 2019

Composercat – a GUI for composer

Composercat is a comprehensive GUI for the Composer package manager, designed both for professionals and people taking their first steps with Composer.

A nice entry point for everyone that is afraid of the console. The GUI application is currently in beta and available for Windows, MacOS and Linux.

“Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.”

Composercat
Composer

10. February 2019

Advanced Custom Fields – Free Your Gutenberg Blocks Data

Updated 25.03. : Some function names changed in the latest beta version.

IN BETA

ACF 5.8 Beta introduced an easy way to create your custom Gutenberg blocks. I am already using it heavily for a current project, to easily organize content and media assets.

Really powerful, when combined with Timber as well, which has been the foundation of many of my themes for years now ;)

ORGANIZE YOURSELF

Organizing data using ACF is nice, but sometimes you seek access to that saved block data directly. I hate it when I am confined to boundaries and the data flow is restricted or hidden. I need things to be accessible to choose the creative flow myself.

SIMPLE EXAMPLE

// Parse blocks from post content
$blocks  = parse_blocks($your_post_content);
$collect = array();

// Loop through the blocks
foreach($blocks as $block){

//Setup global block post data context
// before: acf_setup_postdata
acf_setup_meta( $block['attrs']['data'], $block['attrs']['id'], true );

// Get ACF fields
$fields = get_fields();

// I am using this to organize my assets.
// Each block of mine has a unique identifier as its first field:
// $uid = $block['attrs']['data'][array_keys($block['attrs']['data'])[0]]
// I would do:
// $collect[$uid] = $fields; 

// Collection of fields using the block id. 
$collect[$block['attrs']['id']] = $fields;

// Restore global context
// before: acf_reset_postdata
acf_reset_meta( $block['attrs']['id'] );

}

// Parse blocks from post content

$blocks = parse_blocks($your_post_content);

$collect = array();

// Loop through the blocks

foreach($blocks as $block){

//Setup global block post data context

// before: acf_setup_postdata

acf_setup_meta( $block['attrs']['data'], $block['attrs']['id'], true );

// Get ACF fields

$fields = get_fields();

// I am using this to organize my assets.

// Each block of mine has a unique identifier as its first field:

// $uid = $block['attrs']['data'][array_keys($block['attrs']['data'])[0]]

// I would do:

// $collect[$uid] = $fields;

// Collection of fields using the block id.

$collect[$block['attrs']['id']] = $fields;

// Restore global context

// before: acf_reset_postdata

acf_reset_meta( $block['attrs']['id'] );

}

There you go, enjoy some free block data :)

I was a big skeptic, when it comes to WordPress and the new Gutenberg editor, but combined with ACF + Timber its pure magic :) Looking forward to things to come!

Cheers
Alex

Enjoy coding …

Extended example:

$collect = [];
$blocks = parse_blocks($your->post_content);	
		
foreach($blocks as $block){
		
	if( isset($block['attrs']['data']) && !empty($block['attrs']['data'][array_keys($block['attrs']['data'])[0]])){	
								
		acf_setup_meta( $block['attrs']['data'], $block['attrs']['id'], true );
			
		$fields = get_fields();
			
		 acf_reset_meta( $block['attrs']['id'] );
				
		$collect[$block['attrs']['data'][array_keys($block['attrs']['data'])[0]]] = array('render' 	=> 	render_block( $block ),
																				 'field' 	=>	$fields,																							
																				  'block'  	=> 	$block
																				);
	}else{
          $collect['main'] .= render_block( $block );
}
}

$collect = [];

$blocks = parse_blocks($your->post_content);

foreach($blocks as $block){

if( isset($block['attrs']['data']) && !empty($block['attrs']['data'][array_keys($block['attrs']['data'])[0]])){

acf_setup_meta( $block['attrs']['data'], $block['attrs']['id'], true );

$fields = get_fields();

acf_reset_meta( $block['attrs']['id'] );

$collect[$block['attrs']['data'][array_keys($block['attrs']['data'])[0]]] = array('render' => render_block( $block ),

'field' => $fields,

'block' => $block

);

}else{

$collect['main'] .= render_block( $block );

}

The $collect array will hold all data, including all ACF fields. You will have full access to any field, including repeater fields. The $collect[‘main’] will just collect the standard post content.

6. March 2018

WooCommerce Appointments Enhanced with an Availability Calendar

WordPress WooCommerce Appointments

WooCommerce Appointments is a commercial booking plugin that allows you to setup appointments with WooCommerce. It has full integration into Google calendar to track appointments of your staff.

Staff availability can be set globally or via each staff members profile. While this is nice, I was looking for an option to actually handle availability via another Google Calendar as well. That was a must have feature for a current project.

What do you do, if that feature is not available yet ? You poke the code!

The magic entry point for the staff availability is the user meta “_wc_appointment_availability“, which is made available through includes/class-wc-product-appointment-staff.php.

A couple of weeks ago I asked support for a simple filter hook to alter the availability on demand from the outside.

The development team added the feature in one of the latest releases, making wc_appointments_staff_availability the entry point for my custom availability changes.

The filter hook

add_filter( 'wc_appointments_staff_availability', 'availability_callback', 10, 3 );

function availability_callback($availability, $staff){
// Your changes here
return $availability;
}

add_filter( 'wc_appointments_staff_availability', 'availability_callback', 10, 3 );

function availability_callback($availability, $staff){

// Your changes here

return $availability;

}

Getting the data

You can either pull Google Calendar Events directly through the Google Calendar API or use the available iCal export option. In this quick example I will use the private calendar iCal export file.

The availability calendar

Lets setup a quick clean calendar, called “Availability”. So simple and catchy :)

Create a new calendar
Create some test events. WooCommerce Appointments supports multiple availability rules, but I am focusing on the time:range option and recurring events for this example. I might be extending on this a bit more in the future ! So for this example: Friday, timeframe 10:00 – 16:00 and repeating four times.
Go into settings and get the link to the privat ical export file

Parse iCal data

For this example I am using the PHP ICS Parser, but any other parser will do. Install it via composer: composer require johngrogg/ics-parser.

Lets create a quick little plugin to get us going and save it to /wp-content/plugins/CustomAvailability/smile.php

<?php
use ICal\ICal;

/*
Plugin Name: WooCommerce Appointments - Custom Availability
Plugin URI: https://portalzine.de
Description: Attach additional Google Calendar for staff availability
Version: 1.0
Author: portalZINE NMN
Author URI: https://portalzine.de
*/


require_once(PATH_TO_VENDOR_DIR."vendor/autoload.php");

class StaffCustomAvailability{
 
function __construct() {
  add_filter( 'wc_appointments_staff_availability', array($this, 'staffAvailability'), 10, 3 );
 }
 
function staffAvailability($availability, $staff){
// Your changes here
return $availability;
}

}

$StaffCustomAvailability = new StaffCustomAvailability();

<?php

use ICal\ICal;

Plugin Name: WooCommerce Appointments - Custom Availability

Plugin URI: https://portalzine.de

Description: Attach additional Google Calendar for staff availability

Version: 1.0

Author: portalZINE NMN

Author URI: https://portalzine.de

require_once(PATH_TO_VENDOR_DIR."vendor/autoload.php");

class StaffCustomAvailability{

function __construct() {

add_filter( 'wc_appointments_staff_availability', array($this, 'staffAvailability'), 10, 3 );

}

function staffAvailability($availability, $staff){

// Your changes here

return $availability;

}

$StaffCustomAvailability = new StaffCustomAvailability();

Set the availability

Its time to get the data into the system. I am only pulling and altering the availability for one single user in this example, the user with the USERID “3”. This should provide you with a good starting point.

function staffAvailability($availability, $staff){

// $staff holds the complete user data
// $availability is the current set of rules

// Only altering availability for  USERID 3

if($staff->data->ID == 3){
     $newSet = array();  
  try {
    // add the private ics file here
    $ical = new ICal('URL TO PRIVATE ICS FILE', array(
        'defaultSpan'                 => 2,     // Default value
        'defaultTimeZone'             => 'Europe/Berlin',
        'defaultWeekStart'            => 'MO',  // Default value
        'disableCharacterReplacement' => false, // Default value
        'skipRecurrence'              => false, // Default value
        'useTimeZoneWithRRules'       => false, // Default value
    ));

     } catch (\Exception $e) {
    die($e);
}

   $forceTimeZone = true;
        
   $events = $ical->sortEventsWithOrder($ical->events());
    // looping through all events
   foreach ($events as $event) {
        // Get Start and end date / time information
        $dtstart = $ical->iCalDateToDateTime($event->dtstart_array[3], $forceTimeZone);
        $dtend = $ical->iCalDateToDateTime($event->dtend_array[3], $forceTimeZone);
        
        // Define new time:range rule
        // Adding one rule per day 
       // Added Friday to the calendar + event recurring  4 times, which results in 4 new rules for staff member 3
        $newSet[] =  array(             
            'type' => "time:range",// rule type used for this example
            'appointable' => "yes",
            '[priority' => 10,
            'from' => $dtstart->format('H:i'), // start time 10:00
            'to' => $dtend->format('H:i'), // end time 16:00
            'from_date' => $dtstart->format('Y-m-d'), // start date -  Friday
            'to_date' => $dtend->format('Y-m-d') // end date - Friday
                       );
            $availability = $newSet;
          }
      
      
    }
return $availability;
}

function staffAvailability($availability, $staff){

// $staff holds the complete user data

// $availability is the current set of rules

// Only altering availability for USERID 3

if($staff->data->ID == 3){

$newSet = array();

try {

// add the private ics file here

$ical = new ICal('URL TO PRIVATE ICS FILE', array(

'defaultSpan' => 2, // Default value

'defaultTimeZone' => 'Europe/Berlin',

'defaultWeekStart' => 'MO', // Default value

'disableCharacterReplacement' => false, // Default value

'skipRecurrence' => false, // Default value

'useTimeZoneWithRRules' => false, // Default value

));

} catch (\Exception $e) {

die($e);

}

$forceTimeZone = true;

$events = $ical->sortEventsWithOrder($ical->events());

// looping through all events

foreach ($events as $event) {

// Get Start and end date / time information

$dtstart = $ical->iCalDateToDateTime($event->dtstart_array[3], $forceTimeZone);

$dtend = $ical->iCalDateToDateTime($event->dtend_array[3], $forceTimeZone);

// Define new time:range rule

// Adding one rule per day

// Added Friday to the calendar + event recurring 4 times, which results in 4 new rules for staff member 3

$newSet[] = array(

'type' => "time:range",// rule type used for this example

'appointable' => "yes",

'[priority' => 10,

'from' => $dtstart->format('H:i'), // start time 10:00

'to' => $dtend->format('H:i'), // end time 16:00

'from_date' => $dtstart->format('Y-m-d'), // start date - Friday

'to_date' => $dtend->format('Y-m-d') // end date - Friday

);

$availability = $newSet;

}

return $availability;

}

The example pulls and parses the ics file on every load, use a transient or REDIS to store data and only refresh in certain intervals.

Hope this gets you started! I build a simple interface around it, with a lot of more rule options. This makes the setup for each staff member a brise. Now each of them can setup a calendar easily and provide me with the ics link :) WooCommerce Appointments rocks …

Enjoy coding ….

10. February 2018

IMAP Wrapper client for PHP & Default IMAP Search Criteria

There are many variations of these out there, SSilence/php-imap-client is a lib with a nice set of methods, clean integration and pretty good documentation.
Adding it to my goto essentials !

$mailbox = 'my.imapserver.com';
$username = 'username';
$password = 'secret';
$encryption = Imap::ENCRYPT_SSL;

// Open connection
try{
    $imap = new Imap($mailbox, $username, $password, $encryption);
    // You can also check out example-connect.php for more connection options

}catch (ImapClientException $error){
    echo $error->getMessage().PHP_EOL;
    die(); // Oh no :( we failed
}

// Get all folders as array of strings
$folders = $imap->getFolders();
foreach($folders as $folder) {
    echo $folder;
}

// Select the folder Inbox
$imap->selectFolder('INBOX');

// Count the messages in current folder
$overallMessages = $imap->countMessages();
$unreadMessages = $imap->countUnreadMessages();

$mailbox = 'my.imapserver.com';

$username = 'username';

$password = 'secret';

$encryption = Imap::ENCRYPT_SSL;

// Open connection

try{

$imap = new Imap($mailbox, $username, $password, $encryption);

// You can also check out example-connect.php for more connection options

}catch (ImapClientException $error){

echo $error->getMessage().PHP_EOL;

die(); // Oh no :( we failed

}

// Get all folders as array of strings

$folders = $imap->getFolders();

foreach($folders as $folder) {

echo $folder;

}

// Select the folder Inbox

$imap->selectFolder('INBOX');

// Count the messages in current folder

$overallMessages = $imap->countMessages();

$unreadMessages = $imap->countUnreadMessages();

GitHub

Enjoy coding …

Default IMAP Search Criteria

ALL
      All messages in the mailbox; the default initial key for
	ANDing.

ANSWERED
	Messages with the \Answered flag set.

BCC 
	Messages that contain the specified string in the envelope
	structure's BCC field.

BEFORE 
	Messages whose internal date (disregarding time and timezone)
	is earlier than the specified date.

BODY 
	Messages that contain the specified string in the body of the
	message.

CC 
	Messages that contain the specified string in the envelope
	structure's CC field.

DELETED
	Messages with the \Deleted flag set.

DRAFT
	Messages with the \Draft flag set.

FLAGGED
	Messages with the \Flagged flag set.

FROM 
	Messages that contain the specified string in the envelope
	structure's FROM field.

HEADER  
	Messages that have a header with the specified field-name (as
	defined in [RFC-2822]) and that contains the specified string
	in the text of the header (what comes after the colon).  If the
	string to search is zero-length, this matches all messages that
	have a header line with the specified field-name regardless of
	the contents.

KEYWORD 
	Messages with the specified keyword flag set.

LARGER 
	Messages with an [RFC-2822] size larger than the specified
	number of octets.

NEW
	Messages that have the \Recent flag set but not the \Seen flag.
	This is functionally equivalent to "(RECENT UNSEEN)".

NOT 
	Messages that do not match the specified search key.

OLD
	Messages that do not have the \Recent flag set.  This is
	functionally equivalent to "NOT RECENT" (as opposed to "NOT
	NEW").

ON 
	Messages whose internal date (disregarding time and timezone)
	is within the specified date.

OR  
	Messages that match either search key.

RECENT
	Messages that have the \Recent flag set.

SEEN
	Messages that have the \Seen flag set.

SENTBEFORE 
	Messages whose [RFC-2822] Date: header (disregarding time and
	timezone) is earlier than the specified date.

SENTON 
	Messages whose [RFC-2822] Date: header (disregarding time and
	timezone) is within the specified date.

SENTSINCE 
	Messages whose [RFC-2822] Date: header (disregarding time and
	timezone) is within or later than the specified date.

SINCE 
	Messages whose internal date (disregarding time and timezone)
	is within or later than the specified date.

SMALLER 
	Messages with an [RFC-2822] size smaller than the specified
	number of octets.

SUBJECT 
	Messages that contain the specified string in the envelope
	structure's SUBJECT field.

TEXT 
	Messages that contain the specified string in the header or
	body of the message.

TO 
	Messages that contain the specified string in the envelope
	structure's TO field.

UID 
	Messages with unique identifiers corresponding to the specified
	unique identifier set.  Sequence set ranges are permitted.

UNANSWERED
	Messages that do not have the \Answered flag set.

UNDELETED
	Messages that do not have the \Deleted flag set.

UNDRAFT
	Messages that do not have the \Draft flag set.

UNFLAGGED
	Messages that do not have the \Flagged flag set.

UNKEYWORD 
	Messages that do not have the specified keyword flag set.

UNSEEN
	Messages that do not have the \Seen flag set.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

ALL

All messages in the mailbox; the default initial key for

ANDing.

ANSWERED

Messages with the \Answered flag set.

BCC

Messages that contain the specified string in the envelope

structure's BCC field.

BEFORE

Messages whose internal date (disregarding time and timezone)

is earlier than the specified date.

BODY

Messages that contain the specified string in the body of the

message.

Messages that contain the specified string in the envelope

structure's CC field.

DELETED

Messages with the \Deleted flag set.

DRAFT

Messages with the \Draft flag set.

FLAGGED

Messages with the \Flagged flag set.

FROM

Messages that contain the specified string in the envelope

structure's FROM field.

HEADER

Messages that have a header with the specified field-name (as

defined in [RFC-2822]) and that contains the specified string

in the text of the header (what comes after the colon). If the

string to search is zero-length, this matches all messages that

have a header line with the specified field-name regardless of

the contents.

KEYWORD

Messages with the specified keyword flag set.

LARGER

Messages with an [RFC-2822] size larger than the specified

number of octets.

NEW

Messages that have the \Recent flag set but not the \Seen flag.

This is functionally equivalent to "(RECENT UNSEEN)".

NOT

Messages that do not match the specified search key.

OLD

Messages that do not have the \Recent flag set. This is

functionally equivalent to "NOT RECENT" (as opposed to "NOT

NEW").

Messages whose internal date (disregarding time and timezone)

is within the specified date.

Messages that match either search key.

RECENT

Messages that have the \Recent flag set.

SEEN

Messages that have the \Seen flag set.

SENTBEFORE

Messages whose [RFC-2822] Date: header (disregarding time and

timezone) is earlier than the specified date.

SENTON

Messages whose [RFC-2822] Date: header (disregarding time and

timezone) is within the specified date.

SENTSINCE

Messages whose [RFC-2822] Date: header (disregarding time and

timezone) is within or later than the specified date.

SINCE

Messages whose internal date (disregarding time and timezone)

is within or later than the specified date.

SMALLER

Messages with an [RFC-2822] size smaller than the specified

number of octets.

SUBJECT

Messages that contain the specified string in the envelope

structure's SUBJECT field.

TEXT

Messages that contain the specified string in the header or

body of the message.

Messages that contain the specified string in the envelope

structure's TO field.

UID

Messages with unique identifiers corresponding to the specified

unique identifier set. Sequence set ranges are permitted.

UNANSWERED

Messages that do not have the \Answered flag set.

UNDELETED

Messages that do not have the \Deleted flag set.

UNDRAFT

Messages that do not have the \Draft flag set.

UNFLAGGED

Messages that do not have the \Flagged flag set.

UNKEYWORD

Messages that do not have the specified keyword flag set.

UNSEEN

Messages that do not have the \Seen flag set.

10. February 2018

Screen Scraping with Goutte

We all have been in situations were we need content or information from a connected website, but have no access to a REST Api or any other backend feed.

In these cases screen scraping is the only option to get needed information to finalize an integration. You can do that directly in CURL, but that can be tedious. Far easier to use a nicely packaged solution that combines a component that simulates web browser behavior and a component that eases DOM navigation for HTML and XML documents. Meet Goutte!

STEP 0

Install via composer.

composer require fabpot/goutte

1	composer require fabpot/goutte

STEP 1

$client = new Client();
$crawler = $client->request('GET', 'https://www.page/login.php');

// select the form and fill in some values
$form = $crawler->selectButton('Login')->form();
$form['f_loginname'] = 'HelloMe';
$form['f_loginpass'] = 'securepass';

// submit that form
$crawler = $client->submit($form);

// go to next page    
$crawler = $client->request('GET', 'https://www.page.de/overview.php');

$client = new Client();

$crawler = $client->request('GET', 'https://www.page/login.php');

// select the form and fill in some values

$form = $crawler->selectButton('Login')->form();

$form['f_loginname'] = 'HelloMe';

$form['f_loginpass'] = 'securepass';

// submit that form

$crawler = $client->submit($form);

// go to next page

$crawler = $client->request('GET', 'https://www.page.de/overview.php');

STEP 2

Get the data you need.

// loop over html and filter out what you need

$crawler->filter('table.clients tr')->each(function ($node) {

  $node->filter('td')->each(function ($sub_node) {
    echo $sub_node->html();
  }
}

// loop over html and filter out what you need

$crawler->filter('table.clients tr')->each(function ($node) {

$node->filter('td')->each(function ($sub_node) {

echo $sub_node->html();

}

Goutte @ Github
BrowserKit Documentation
DOM Crawler Documentation

Enjoy coding …

27. January 2018

Audiomanager for text-to-speech cloud services

I have been working on a project , that relies on text-to-speech cloud services for a lot of things.

Audiomanager abstracts access to popular text-to-speech cloud services like Google, Ivona, Amazon Polly… Really a timesaver, when evaluating different services.

Polly Example

$adapter = new \AudioManager\Adapter\Polly();
$adapter->getOptions()->initialize()
    ->setVersion('latest')
    ->setRegion('us-west-2')
    ->setCredentials()
        ->setKey('...')
        ->setSecret('...');

$adapter->getOptions()->setOutputFormat('...'); //Default 'mp3'
$adapter->getOptions()->setLexiconNames('...');
$adapter->getOptions()->setSampleRate('...'); //Default '16000'
$adapter->getOptions()->setTextType('...'); //Default 'text'
$adapter->getOptions()->setVoiceId('...'); //Default 'Salli'

$adapter = new \AudioManager\Adapter\Polly();

$adapter->getOptions()->initialize()

->setVersion('latest')

->setRegion('us-west-2')

->setCredentials()

->setKey('...')

->setSecret('...');

$adapter->getOptions()->setOutputFormat('...'); //Default 'mp3'

$adapter->getOptions()->setLexiconNames('...');

$adapter->getOptions()->setSampleRate('...'); //Default '16000'

$adapter->getOptions()->setTextType('...'); //Default 'text'

$adapter->getOptions()->setVoiceId('...'); //Default 'Salli'

GitHub

Enjoy coding ….

27. January 2018

Never store sensitive credentials in your code again – PHP dotenv

PHP dotenv loads environment variables from .env to getenv(), $_ENV and $_SERVER automagically.

You should never store sensitive credentials in your code. Anything that is likely to change between deployment environments – such as database credentials or credentials for 3rd party services – should be extracted from the code into environment variables.

Add your application configuration to a .env file in the root of your project. Make sure the .env file is added to your .gitignore so it is not being checked-in.

DEFINE

S3_BUCKET="dotenv"
SECRET_KEY="souper_seekret_key"

1 2	S3_BUCKET="dotenv" SECRET_KEY="souper_seekret_key"

LOAD

$dotenv = new Dotenv\Dotenv(__DIR__);
$dotenv->load();

// OR WITH filename

$dotenv = new Dotenv\Dotenv(__DIR__, 'myconfig');
$dotenv->load();

$dotenv = new Dotenv\Dotenv(__DIR__);

$dotenv->load();

// OR WITH filename

$dotenv = new Dotenv\Dotenv(__DIR__, 'myconfig');

$dotenv->load();

ACCESS

$s3_bucket = getenv('S3_BUCKET');
$s3_bucket = $_ENV['S3_BUCKET'];
$s3_bucket = $_SERVER['S3_BUCKET'];

$s3_bucket = getenv('S3_BUCKET');

$s3_bucket = $_ENV['S3_BUCKET'];

$s3_bucket = $_SERVER['S3_BUCKET'];

GitHub

Enjoy coding and be secure …

27. January 2018

Generate Unique User Nicenames for WordPress

Simple little snippet, that can easily be used in conjunction with wp_update_user()

/* Generate Unique User Nicename */
function generate_unique_user_nicename( $x ) {
	// set up args to query
	$args = array(
		'search'         => sanitize_title( $x ),
		'search_columns' => array( 'user_nicename' )
	);
	// query for user
	$user_url_exists = new WP_User_Query( $args );
	$results = $user_url_exists->get_results();
	// if user url is found, check for new one
	if( !empty( $results ) ) {
		$i = substr( sanitize_title( $x ), intval( strrpos( sanitize_title( $x ) ,'-' ) ) + 1 ); 
		if( is_numeric( $i ) ) {
			$i++;
			$y = substr($x, 0, strrpos($x,'-' ));
			$company_name = $y . '-' . $i;
		} else {
			$company_name = $x . '-1';
		}
		$new_company_name = sanitize_title( $company_name );
		return generate_unique_user_nicename( $new_company_name );
	} else {
		return sanitize_title( $x );
	}
}

/* Generate Unique User Nicename */

function generate_unique_user_nicename( $x ) {

// set up args to query

$args = array(

'search' => sanitize_title( $x ),

'search_columns' => array( 'user_nicename' )

);

// query for user

$user_url_exists = new WP_User_Query( $args );

$results = $user_url_exists->get_results();

// if user url is found, check for new one

if( !empty( $results ) ) {

$i = substr( sanitize_title( $x ), intval( strrpos( sanitize_title( $x ) ,'-' ) ) + 1 );

if( is_numeric( $i ) ) {

$i++;

$y = substr($x, 0, strrpos($x,'-' ));

$company_name = $y . '-' . $i;

} else {

$company_name = $x . '-1';

}

$new_company_name = sanitize_title( $company_name );

return generate_unique_user_nicename( $new_company_name );

} else {

return sanitize_title( $x );

}

Enjoy coding …

23. January 2018

Cleaning up the WordPress Feed (Validation)

When using your main content feed to share posts via buffer or other services, it is crucial that your feed validates cleanly.

There are always things in the generated WordPress content that can break your feed validation. Here some things to cleanup or alter your delivered feed content.

CONDITIONAL TAGS

is_feed()
Check for syndication request. This tag is not typically used by users; it is used internally by WordPress and is available for Plugin Developers.

Check for feed syndication in your themes functions.php

if (is_feed()) {
    /.. tweaks go here ../
}

if (is_feed()) {

/.. tweaks go here ../

}

REMOVE IFRAMES

function rss_noiframe($content) {
        
    $content = preg_replace( '/<iframe(.*)\/iframe>/is', '', $content );

    return $content;
}

add_filter('the_excerpt_rss', 'rss_noiframe');
add_filter('the_content_feed', 'rss_noiframe');

function rss_noiframe($content) {

$content = preg_replace( '/<iframe(.*)\/iframe>/is', '', $content );

return $content;

}

add_filter('the_excerpt_rss', 'rss_noiframe');

add_filter('the_content_feed', 'rss_noiframe');

REMOVE / DISABLE COMMENTS

function rss_nocomments($content) {
    
     global $post;
      $post->comment_status="closed";
   
  
}

add_filter('the_excerpt_rss', 'rss_nocomments');
add_filter('the_content_feed', 'rss_nocomments');

function rss_nocomments($content) {

global $post;

$post->comment_status="closed";

}

add_filter('the_excerpt_rss', 'rss_nocomments');

add_filter('the_content_feed', 'rss_nocomments');

REMOVE RESPONSIVE IMAGES

The sizes attribute breaks feed validation, here how to clean it up.

function no_responsive_image_feeds() {
    add_filter( 'max_srcset_image_width', function() {
       return 1;
    } );
}

add_action('rss2_head', 'no_responsive_image_feeds' );
add_action('atom_head', 'no_responsive_image_feeds' );
add_action('rss_head', 'no_responsive_image_feeds' );

function no_responsive_image_feeds() {

add_filter( 'max_srcset_image_width', function() {

return 1;

} );

}

add_action('rss2_head', 'no_responsive_image_feeds' );

add_action('atom_head', 'no_responsive_image_feeds' );

add_action('rss_head', 'no_responsive_image_feeds' );

INCLUDE PAGES IN POST FEED

if (is_feed()) {
function feedFilter($query) {
	if ($query->is_feed) {
		$query->set('post_type','any');
		}
	return $query;
}
add_filter('pre_get_posts','feedFilter');
}

if (is_feed()) {

function feedFilter($query) {

if ($query->is_feed) {

$query->set('post_type','any');

}

return $query;

}

add_filter('pre_get_posts','feedFilter');

}

ADJUST AMOUNT OF POSTS

if (is_feed()) {

function feedFilter($query) {
	if ($query->is_feed) {
		$query->set('posts_per_page','11');
	}
 
	return $query;
}
add_filter('pre_get_posts','feedFilter');

}

if (is_feed()) {

function feedFilter($query) {

if ($query->is_feed) {

$query->set('posts_per_page','11');

}

return $query;

}

add_filter('pre_get_posts','feedFilter');

}

LIMIT BY CATEGORY

if (is_feed()) {
function feedFilter($query) {
	if ($query->is_feed) {
		$query->set('category_name', 'my-special-cat');
	}
 
	return $query;
}
add_filter('pre_get_posts','feedFilter');
}

if (is_feed()) {

function feedFilter($query) {

if ($query->is_feed) {

$query->set('category_name', 'my-special-cat');

}

return $query;

}

add_filter('pre_get_posts','feedFilter');

}