Kaizen #17 - PHP SDK
Hello everyone!
Welcome to yet another post in the Kaizen series.
PHP Software Development Kit
PHP SDK allows you to create client PHP applications that can be integrated with Zoho CRM effortlessly. It serves as a wrapper for the REST APIs, thus making it easier to use the services of Zoho CRM.
Here is a sample of how the PHP SDK acts as a middleware between Zoho CRM and Client PHP Application.
What can you do with the PHP SDK?
- You can use the PHP SDK to exchange data between Zoho CRM and the client PHP application.
- Authenticate your application easily every time you sync data between Zoho CRM and the client PHP application, as the SDK takes care of generating the access/refresh tokens automatically.
Installing the PHP SDK
You can install the PHP SDK for Zoho CRM through the Composer—a dependency manager for PHP applications.
The pre-requisites for the client PHP application, before you start using the PHP SDK are:
- The client app must have PHP 5.6 or above with a curl extension.
- The client app must have the PHP SDK installed through Composer.
- The ZCRMRestClient::initialize($configuration) function must be called once while starting the client app. It contains the configuration details as key-value pairs.
PHP SDK and the PHP client application
- Include the following line to your client application (wherever you intend to use the PHP SDK) to access all the functionalities of the PHP SDK.require ‘vendor/autoload.php’
- Include the namespaces of the class in the "use" statement. For instance, if you use the ZCRMRestclient class, you must add the following.use zcrmsdk\crm\setup\restclient\ZCRMRestClient;
How to start using the PHP SDK?
- Step-1: Prerequisite: Register your application
- Step-2: Install the PHP SDK
- Step-3: Authenticate the client application
- Step-4: Knowledge Base: Token Persistence
- Step-5: Initialization
Step-1: Prerequisite: Register your application
All the Zoho CRM APIs are authenticated by the OAuth2.0 standards. It is mandatory to authenticate the client application with Zoho.
2. Click ADD CLIENT.
3. Choose a client type. For instance, Self Client.
4. Choose the Client Type, and click CREATE.
In the case of a web-based client, you need to specify the Client Name, Homepage URL and redirect URIs. 
5. Once you successfully register your self-client, you will receive a Client ID and Client Secret.
Step-2: Install the PHP SDK
Installing Composer
As discussed earlier, you can install the PHP SDK through the Composer. To install the composer:
Operating System | Procedure |
Mac/Linux | Run the following command in your terminal: curl -sS https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx |
Windows | Click here to download the .exe file and install composer. |
Installing the PHP SDK through the Composer
- Navigate to the workspace of your client app.
- Run the following command in the workspace of your client app.composer require zohocrm/php-sdk
- Once you run this command, the system installs the PHP SDK and creates a package named vendor in the workspace of your client app.
Step-3: Authenticate the client application
You must authenticate the client PHP application before it can use the PHP SDK. To authenticate the client PHP application, pass the configuration associative array to the initialization process.
- Create $configuration associative array. It must contain the authentication credentials required.
- The configuration associative array must then be passed using the ZCRMRestClient::initialize($configuration); function.
Configuration associative array
You must add the configuration values to the PHP associative array (key-value pair) and pass it as an argument to the ZCRMRestclient::initialize($configuration); function. Below is the list of keys that are to be in the associative array.
Key | Description |
client_id, client_secret mandatory | You can get these details after registering your client. |
redirect_uri mandatory for a web based client | The redirect URI of your web-based PHP client application. |
currentUserEmail mandatory | It is the email ID of the current user. You can set it in two ways: a. Through the currentUserEmail key in the configuration associative array (or) b. Through the ZCRMRestClient::setCurrentUserEmailId({user_email_id}) line in the code. |
fileUploadUrl Mandatory when using the Bulk Write API | The value for this key must be https://content.zohoapis.com. |
applicationLogFilePath optional | The SDK automatically creates a file to store the log information. The absolute file path of the folder in which the system must create the log file must be specified. The default file name is the ZCRMClientLibrary.log. If not specified, the system creates the file inside the project. |
sandbox optional | Represents whether to make API calls from the sandbox account. true: Make the API calls from the sandbox account. false: Do not make the API calls from the sandbox account. This is the default value. |
apiBaseUrl optional | Represents the URL to make API calls. It denotes the domain of the user. The possible values are: www.zohoapis.com (default) www.zohoapis.eu www.zohoapis.com.cn |
apiVersion optional | Represents the API version. Specify the value as v2 (default). |
access_type optional | Specify the value as offline. There is no support for Online OAuth client in PHP SDK as of now. |
accounts_url optional | The accounts URL. Possible values are: https://accounts.zoho.com (default) |
persistence_handler_class optional | The implementation of ZohoOAuthPersistenceInterface |
token_persistence_path optional | The absolute path to the folder that contains zcrm_oauthtokens.txt file. This key is mandatory if you want to use file persistence. If you include this key, this method takes precedence over other persistence methods. |
persistence_handler_class_name optional | The name of the custom class for persistence. This key is available only in PHP SDK 2.0.7 and above versions. |
db_port optional | You can specify this key if you want to use DB persistence. The default value is 3306. |
db_username, db_password optional | Specify the username and password of your database. The default value for db_username is root. |
host_address optional | The address of the machine in which the MySQL server is running. The default value is 'localhost'. This key is available only in PHP SDK 2.0.7 and above versions. |
Sample containing the mandatory keys alone:
$configuration=array("client_id"=>"1000.xxxxxxxxxxx"","client_secret"=>"831bxxxxxxxxxxxx","redirect_uri"=>"","currentUserEmail"=>"patricia@zylker.com"); ZCRMRestClient::initialize($configuration); |
Sample containing all the keys:
$configuration=array("client_id"=>"1000.xxxxxxxxxxx", "client_secret"=>"831bxxxxxxxxxxxx", "redirect_uri"=>"redirect_uri", "currentUserEmail"=>"patricia@zylker.com", "applicationLogFilePath"=>"absolute/path/to/folder", "sandbox"=>"false","apiBaseUrl"=>"www.zohoapis.com", "apiVersion"=>"v2","access_type"=>"offline", "accounts_url"=>"https://accounts.zoho.com", "persistence_handler_class"=>"absolute/file/path/to/persistence/implementation", "token_persistence_path"=>"absolute/path/to/folder/zcrm_oauthtokens.txt", //should not contain "zcrm_oauthtokens.txt" "persistence_handler_class_name"=>"Persistence_class_name", "fileUploadUrl"=>"https://content.zohoapis.com"); ZCRMRestClient::initialize($configuration); |
Step-4: Token Persistence
Your application should retain tokens (grant, access, refresh tokens) to automate the process of data-sync between your PHP application and Zoho CRM.
You can persist tokens in your application in three ways:
- a. Using a Database
- b. Using a File
- c. Custom Persistence
a. Using a Database
If you prefer using database persistence, you can use the MySQL.
Prerequisites while using the database persistence
- The name of the database must be zohooauth.
- There must be a table oauthtokens with columns
a. useridentifier (varchar(100))
accesstoken (varchar(100))
refreshtoken (varchar(100))
expirytime (bigint)
b. Using a File
This type of persistence uses a file to read and write OAuth tokens. The file persists the token of a single user. So, it is best used for the 'self-client' type of authentication since it involves only one user. If you prefer using the file persistence, you must create an empty file in the local drive named zcrm_oauthtokens.txt. Further, set the file path in the token_persistence_path, of the $configuration associative array. Do not include "zcrm_oauthtokens.txt" in the path.
For example, if the file is in a folder named "TokenStorage", then
token_persistence_path="{path/to/TokenStorage}"
c. Custom Persistence
From the PHP SDK version 2.0.0, you can have your own implementation of persistence.
You must mention the name of the persistence class in the persistence_handler_class_name key of configuration associative array. Provide the file path of the PHP file that implements the custom persistence, in the persistence_handler_class key of the configuration associative array. The class must implement the ZohoOAuthPersistenceInterface.
You must write an implementation of the inbuilt ZohoPersistenceHandler interface, with the following methods:
- getOAuthTokens($userEmailId)—invoked to fetch the saved tokens. This method should return ZohoOAuthTokens object for the library to process it.
- saveOAuthData(ZohoOAuthTokens tokens)—invoked to store the tokens.
- deleteOAuthTokens($userEmailId)— invoked to delete the tokens.
Step-5: Initialization
Once you define the OAuth configuration, you can initialize the PHP client application.
You need to generate the tokens (grant/access/refresh) to run the app.
Generating the tokens
As the V2 Zoho CRM APIs follow the OAuth2.0 protocol, it is mandatory to authorize the OAuth2.0 app before using the SDK functions with an access token.
You can generate an access token from a grant token.
You can generate the grant token in two ways based on the type of client.
For Self Client Applications
- Log in to Zoho and go to Zoho Developer Console.
- Select your Self Client.
- Provide the necessary scopes separated by commas, along with the scope aaaserver.profile.READ.
- Select the Time Duration from the drop-down. This is the time the grant token is valid for.
- Provide a description for the scopes. Click GENERATE.
- Copy the grant token.
For Web-based Applications
It is the responsibility of your client app to generate the grant token for the users trying to login.
Your application's UI must have the Login with Zoho option to open the grant token URL of Zoho, which would prompt for the user's OAuth2.0 authorization.
Upon the successful login of the user, the grant token will be sent as a parameter to your registered redirect URL.
Generating an access token from the grant token
Use the below code snippet in your main class.
$configuration =array("client_id"=>"1000.xxxxxxxxxxx","client_secret"=>"831bxxxxxxxxxxxx","redirect_uri"=>"","currentUserEmail"=>"patricia@zylker.com"); ZCRMRestClient::initialize($configuration); $oAuthClient = ZohoOAuth::getClientInstance(); $grantToken = "paste_the_self_authorized_grant_token_here"; $oAuthTokens = $oAuthClient->generateAccessToken($grantToken); |
Note
- The code snippet to generate the access token from the grant token is valid only once per grant token. If the grant token expires before you generate the access token, you must generate a new grant token only.
- Generating access and refresh tokens is a one-time process. After the tokens are generated for the first time, the SDK persists them based on the keys defined in the configuration dictionary, and refreshes the access token as and when required.
App Startup
Invoke the following line of code every time you start your client app.
$configuration =array("client_id"=>"1000.xxxxxxxxxxx","client_secret"=>"831bxxxxxxxxxxxx","redirect_uri"=>"","currentUserEmail"=>"patricia@zylker.com"); ZCRMRestClient::initialize($configuration); |
Sample SDK Code
The following image shows the sample SDK code to create a new record. The downloadable sample code is attached.
For more sample codes, refer to our SDK guide.
We hope you found this post useful. Keep a tab on this series for more exciting topics!
Reach out to us at support@zohocrm.com if you have any questions, or let us know in the comment section.
We will meet you next week with another useful topic.
Cheers!
Access your files securely from anywhere
New to Zoho Recruit?
Zoho Developer Community
New to Zoho LandingPage?
Zoho LandingPage Resources
New to Zoho Survey?
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Bigin?
Topic Participants
Shylaja S
Jonathan Thirkill
Praveen Sankar
Momin
Pardha Teja M
Sticky Posts
Kaizen #222 - Client Script Support for Notes Related List
Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore howKaizen #217 - Actions APIs : Tasks
Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.Kaizen #216 - Actions APIs : Email Notifications
Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes areKaizen #152 - Client Script Support for the new Canvas Record Forms
Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achievedKaizen #142: How to Navigate to Another Page in Zoho CRM using Client Script
Hello everyone! Welcome back to another exciting Kaizen post. In this post, let us see how you can you navigate to different Pages using Client Script. In this Kaizen post, Need to Navigate to different Pages Client Script ZDKs related to navigation A.
New to Zoho TeamInbox?
Zoho TeamInbox Resources
Zoho CRM Plus Resources
Zoho Books Resources
Zoho Subscriptions Resources
Zoho Projects Resources
Zoho Sprints Resources
Qntrl Resources
Zoho Creator Resources
Zoho CRM Resources
Design. Discuss. Deliver.
Zoho Show Resources
Get Started. Write Away!
Writer is a powerful online word processor, designed for collaborative work.
Zoho CRM コンテンツ
-
オンラインヘルプ
-
Webセミナー
-
機能活用動画
-
よくある質問
-
Ebook
-
-
Zoho Campaigns
- Zoho サービスのWebセミナー
その他のサービス コンテンツ
Nederlandse Hulpbronnen
ご検討中の方
Recent Topics
Tip of the week #30: Share calendars publicly in Zoho Calendar.
In Zoho Calendar, calendars that are created under My Calendars can be shared publicly. Making your calendar public allows others to view it. When you need to share your calendar with a larger group, public sharing can help. You can restrict others fromTip of the week #31: Share your personal calendars within organization.
Keep your Organization members aware of what's happening. In Zoho Calendar, you can share your personal calendar with all the members in your organization using the Share with org option.When you enable org sharing for a particular personal calendar,Tip of the Week #33: Appointment scheduler in Zoho Calendar.
In Zoho Calendar, you can use the Schedule Appointment option to share your appointment request form with the public, allowing people to fill out the form to request an appointment with you. This form can be embedded on your website or blog. VisitorsTip of the Week #34: Embed Calendars using Zoho Calendar
You can make your calendars public and visible to the general public by embedding them in your websites/blogs using Zoho Calendar. You can use the embed code to add your own calendars to your website's/ blog's HTML code, and the calendar will appear onTip of the week #35: Migrate to Zoho Calendar from Google Calendar.
If you are looking to move your Google Calendar events to Zoho Calendar, never worry about missing out the events from your Google Calendar. You can migrate the events from Google Calendar using the export option and import it to Zoho Calendar and manageTip of the week #36: Migrate to Zoho Calendar from Outlook Calendar.
If you've been using Outlook calendar and looking to migrate to Zoho Calendar, you can seamlessly export your calendars from Outlook and import them into Zoho Calendar without losing any events, participants, and the reminders set for each event. To migrateShared calendar issues and duplications
Apparently there was a calendar update? Now when I schedule an event for a team member that has shared his calendar with me, the event makes me the organizer and adds the event to my calendar as well. Previous to this "update" I would scheduled an eventSubscribed Calendar
Hi i have subscribed to a calendar for Holidays in Canada it shows all the holidays perfectly but every one of them has the word Canada before the rest of the name is there a way to remove that word Canada? It takes up a lot of space in the square onThe year that was at Zoho Calendar 2023- Part 1
Hello, amazing community members! Happy new year from all of us here at Zoho Calendar. As we begin the new year, we'd like to thank each and everyone of our community members for your unwavering support and love that you have shown for Zoho Calendar.Zoho Calendar 2024: A Year in Review
Hello, community members! Happy new year from all of us here at Zoho Calendar. As we turn the page to a new year, we extend our heartfelt gratitude to every member of our Zoho Calendar community for your continued support and enthusiasm. Your feedbackZoho Calendar not syncing correctly with personal Google Calendar
Coming to this forum as Zoho Calendar support team is not responding, any more. For the past 8 weeks, I have been having an issue with Zoho Calendar not syncing with my personal Google Calendar correctly. I subscribed to Zoho Calendar iCal in my personalZeptomail API error 500 internal server error
Hi Everyone, getting this eror continuously! Can anyone please guide around the same! Zeptomail API error 500 internal server error Best RegardsWaiting multiple days to buy credits, causing my website to suffer
So I own a fairly large website that gets a lot of registered users. I use transmail send activation emails, and also forgot password emails. I sent an email to zoho's presales team when I was only at 4K/10K emails sent, hoping to buy more credits beforeFollow up
Hello, I sent a message 2 days ago but I don't receive any response and I cannot find my ticket here. this is the ticket: Your ticket has been created with the ticket ID 68925465 and subject "Fwd: Fishing-alert" looking forward to seeing your response.What's new in TransMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! We've recently crossed the 6 months mark of TransMail's launch. In this time post our launch, we have been constantly working on updating our platform and adding new featuresJune 2021 in TransMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well. If you're doing less than fine, we truly hope that things only get better for you. We've had a few updates in the past monthTransMail has a new name—ZeptoMail!
Tried navigating to TransMail's community forum but see a different name now? That's because TransMail has a new name. TransMail is now ZeptoMail! As we’ve grown from an internal service used mainly by other Zoho products to an up-and-coming competitorJuly 2021 in ZeptoMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well. We've had a few updates in the past month in ZeptoMail—some new features and some important announcements. Take look at whatSend Email From the ZeptoMail BY API
What is Zeptomail:- Transactional email service with reliable and fast delivery How we can Create a Connection for Zeptomail in Zoho CRM Go to the Setup Click on Connection Enter Connection Details:- Generate Consumer Key & Consumer Secret Using ZohoCustomer email on Opencart 3
When I place an order, 2 emails are sent: 1) administrator 2) to the user The administrator receives a beautiful letter, but the user receives a damaged letter (see screenshot). What could be the problem?[Announcement] Insert image from URL changes in Zoho Writer
Hi Zoho Writer users! We'd like to let you know that we've changed the behavior of the Insert image from URL option in Zoho Writer for security reasons. Earlier behavior Once you inserted an image URL in a Writer document, the image would be fetched fromWriter sing up problom
Zoho writer sing up prolom faceUnable to copy into a new document
Whe I create a new Writer doc and attemp to copy and past I get this message. The only way to copy into a document is I duplicate an existing document, erase the text and save it under a different name and then paste the information. Not ideal. Can you[Webinar] Live demos and user Q&A with Zoho Writer product experts
Join us on June 12, 2025 for live demos based on your use cases and real-world scenarios raised via form. This is also an opportunity to get your questions answered directly by product experts from the Zoho Writer team. Webinar agenda Live demos basedZoho Writer's built-in citation and bibliography generator
Hey researchers and writers! Do you manually format citations and bibliographies, spending hours jumping between apps and tabs? If so, then check out Zoho Writer's built-in "Citations and Bibliography" feature. Imagine you're writing a thesis on the futureSingle and group checkboxes in Zoho Writer's fillable forms
Hey Writer Fam, Are you making the most out of single and group checkboxes in fillable forms in Zoho Writer? Here is a handy tip to optimize your use of checkboxes, both single and group, and enhance your data collection process. Single checkboxes: SingleCollaborate efficiently with Zoho Writer's track changes feature
Hi Zoho Writer Community, Zoho Writer's track changes feature is a simple, built-in solution that helps you and your team work together efficiently. Instead of juggling multiple versions of a document or building up a long email chain of comments, eachZoho Writer's WordPress extensions
Hey Zoho Writer users! Say goodbye to all your WordPress content publishing woes with Zoho Writer's WordPress extensions. Publish content with all your formatting and images, republish content when you update a document, and more—from a single windowTime-saving table hacks
Hey Zoho Writer Community, Do you find yourself using a lot of tables in your documents? We're here to share some of our time-saving hacks that will help you work more efficiently, organize your data, and make your documents look neat and professional.Automating document approval and signing with Zoho Writer and Zoho Sign
Hey Zoho Writer Community! Here's another automation tip to make your processes more efficient! Question: Can I send a document for client approval first, then automatically send it for signing with Zoho Sign if they approve? Since it's the same personCustomization hacks in Zoho Writer - Part 2
Hey community, We're back with some more tricks to personalize your documents, save time, and get in the zone when you work in Writer. Check out part 1 of this post if you haven't already. Let's dive right in! Document ruler units Imagine you're creatingSimplify your tax calculations with Zoho Writer
Hello Zoho Writer Community! Tax season can be stressful, but with Zoho Writer, managing your income tax calculations becomes straightforward and efficient. Here’s an example of how you can use the tables and formulae of Zoho Writer to calculate incomeEnhance document navigation with headings and TOC
Hey Zoho Writer Community! We're back with some useful features in Zoho Writer that can simplify your document creation and navigation process. Let's dive right in! Check out our video on how to make the most of Zoho Writer's heading and table of contentsUse and download in PDF format of Zoho wirter Merge template using deluge
Hello Zoho Developers. Here is some information about Zoho Writer. Writer is not just another online word processor, it's a powerful tool for editing, collaboration, and publishing. Even with its wide range of features, Writer's pared-down user interfaceCustomization hacks in Zoho Writer - Part 3
Hello everyone, Welcome back to Part 3 of our customization tips in Zoho Writer! In this third installment, we'll be diving into some essential customization settings that can enhance your document creation experience. Sender email address in mail mergeDaytime saving timezones messing up writer pdf
Hi, I need help for something I can't figure out. I created a Form to collect data and it is set up with my current Daylight Saving Time (GMT-3). This form is used to generate a contract (pdf Writer) with dates from an event that is being held in 4 monthsIssue with locked content in Writer
Hi, I have seen the documentation which outlines how to lock specific content within a Writer document so that it can't be modified by collaborators, but I have come across an issue. When the editor locks a paragraph for example, then a collaborator can'tDeprecation of certain URL patterns for published Zoho Writer documents
Hi Zoho Writer users! We'd like to let you know that we have deprecated certain URL patterns for published and embedded documents in Zoho Writer due to security reasons. If the published or embedded documents are in any of these URL patterns, then theirUsing Mail Merge Template to Print Documents with One Subform Record's Fields per Document
Hello, We have a Mail Merge template created in Zoho Writer which is not able to perform the functionality which is currently required to automate the documentation task portion of our process. The CRM module we are primarily using is based on a "Loans"Problem with Writer and Workdrive
Hi team, I’m the super admin for our Zoho One org. WorkDrive is active, and Zoho Docs is deprecated for our org. However, Zoho Writer cannot connect to WorkDrive at all — we’ve cleared cache, tried incognito, and restarted several times. I was able toNext Page