PHPKB API Reference Guide


This document provides details on how to use the API available in PHPKB knowledge base management software. It acts as a reference guide and covers topics such as enabling the API server, generating the API verification keys, preparing the request URL parameters for submitting a valid request to the API server.

The API can be called through the browser directly, which is the easiest approach. If your knowledge base is installed at https://www.yoursite.com/phpkb/ then API server can be accessed from https://www.yoursite.com/phpkb/api.php.

Note: In order to make any requests to PHPKB API, you'll need to authorize your requests by providing valid API key.

1. Enabling API Server

The very first step is to enable the API server from "Manage Settings > Miscellaneous" section of admin control panel.

API Server Settings

  1. Enable API : This setting should be checked to enable API, otherwise, the system would reject your request.
  2. Verify API Key : To constructing a more secure API system, the API requires an authorization key to validate the request and return results. For more details, refer to "How to generate an API Key?" section below.
  3. Secure API Connection : If you want that API system should be accessed through SSL via https:// then enable this setting. For instance, if the setting is enabled and you are accessing the API via http:// (without "s") then your request would be discarded.
  4. Referrers : Enter the comma separated value of domains that can generate a request for API.
  5. Save Logs : An optional setting to store the log of every request made to the API and response generated by the API.

How to generate an API Key?

You can generate an API key from "API > Keys" section of the admin panel as shown below.

API Keys

It is recommended to add some alphanumeric string in the key field and press "Save" button. The system will store the string and output the "MD5 Hash" result as the key. The "MD5 Hash" value of the string must be passed to the API server (api.php) as "key" parameter along with other parameters, otherwise, the API will reject your request.

Example: If the MD5 Hash value generated for your key is d13658044c8883055db782f1956b3561 then while calling API user must add a key parameter like
https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561

2. Calling the API Server

Calls should be made to the API server available at https://www.yoursite.com/phpkb/api.php. It will return data/errors in JSON format.

How to prepare the query string for accessing the required data through API?

Here is the detailed explanation of various parameters that can be passed to the API Server via query string as variables.

1. key : If "Verify API Key" setting is enabled settings then, it is a mandatory field and should be passed with each request. Parameter name for this is key and as explained earlier, the value of this parameter should be "MD5 Hash" value of the key. Therefore, the complete parameter string would be in form of key=value

    key=d13658044c8883055db782f1956b3561

2. call : It specifies the module that needs to be invoked.

Possible values can be:

This is a mandatory field and should not be left blank. The query string for this parameter would be in the form of call=articles

3. method : This parameter can be used when you want to fetch a list of items.

Possible values for different modules

Applicable on news and articles module

Query String: method=recent

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&method=recent

4. cid : To view the articles of a specific category, enter the category id in this field.

Applicable to the articles and search modules.

Query String: cid=1

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&cid=1

5. limit : If you want to bound the results to a certain threshold then specify the numeric count in this field.

Applicable to all modules.

Query String: limit=2

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&method=recent&limit=2

6. fields : Enter the comma separated values of article fields that you want to access. If the field is empty, then all the article fields would be returned.

Possible values of field parameter for different modules:

Applicable to all modules.

Query String: fields=title,link

A link is the URL of the article.

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&cid=1&limit=2&fields=title,link

7. mode : Possible values are text or html. If you want to see the contents in text or HTML mode, then this is applicable.

Applicable to articles and news modules.

Query String: mode=text/html

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&cid=1&limit=2&fields=title,link&mode=text

8. charCount : This field is valid only for text mode. In case, you need to see any number of characters in content, then charCount is applicable.

Applicable to articles and news modules.

Query String: charCount=100

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&cid=1&limit=2&fields=title,link&mode=text&charCount=100

9. id : If you want to fetch the value of a specific item, then specify the ID of the item in this field.

Applicable to articles, news, categories modules.

Query String: id=1

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&id=1&fields=title,link

10. lang : This parameter is applicable only to the ML (multi-language) editions of PHPKB knowledge base software. It lets you specify the Language ID for which you want to fetch the list of articles/news/categories. By default, the script returns English articles/news/categories. Please note, this field has less precedence than "cid" and "id".

Applicable to all modules.

Query String: lang=1

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=articles&lang=2&method=recent&limit=2&fields=title,link

11. k : keyword that is to be searched

Applicable to the search module.

Query String: k=forgot password

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&k=forgot+password&mode=text

12. for : the area where to search the keyword

Possible values: articles/news/categories

Applicable to the search module.

Query String: for=articles

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&for=articles&k=forgot+password&mode=text

13. in : to specify the fields in which the system will search for keywords.

Possible values for different modules:

The default value is "all"

"id" would only be searched if search mode is set to "like". Full text is applicable only on character fields.

Applicable to the search module.

Query String: in=title

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&for=articles&in=title&k=forgot+password&mode=text

14. filter : to specify if the system should search for any words, all words or exact match of the search keywords

Possible values: any/all/exact

The default value is "any"

Applicable to the search module.

Query String: filter=all

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&filter=all&k=forgot+password&mode=text

15. subcats : This parameter lets you specify if the search should also include sub-categories of the specified category ID.

Possible values: yes/no

The default value is "no"

Applicable to the search module.

Query String: subcats=yes

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&filter=all&k=forgot+password&mode=text&cid=1&subcats=yes

16. sort : This parameter lets you specify the sort order of search results

Applicable to the search module.

Possible values for different modules:

The default value is "relevance" for all modules.

Query String: sort=popularity

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&for=articles&k=forgot+password&mode=text&sort=popularity

17. attachments : This parameter lets you specify if the search should also be performed on the text content of attached files 

Possible values: yes/no

The default value is "no"

Applicable to the search module.

Query String: attachments=yes

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&k=forgot+password&mode=text&attachments=yes

18. custom-fields : This parameter lets you specify if the search should also be performed on the values of custom fields.

Possible values: yes/no

The default value is "no"

Applicable to the search module.

Query String: custom-fields=yes

    https://www.yoursite.com/phpkb/api.php?key=d13658044c8883055db782f1956b3561&call=search&k=forgot+password&mode=text&custom-fields=yes

3. Response Codes

Success or error codes returned by PHPKB API would give you explanation about the status of your request in case you'll experience any issues:

Code Status Description
200 OK Successful request.
400 Bad Request Invalid request and/or request parameters
401 Bad Authentication Data Authentication is required in order to retrieve data. Either invalid api key or wrong format of api key
404 Not Found When the requested resource is not found. For example API request was made on invalid URL.
500 Internal Server Error The general catch-all error when the server-side throws an exception
503 Service Unavailable API interface unavailable or disabled

Custom Fields

Article ID: 176
Created: Tue, Feb 19, 2019
Last Updated: Mon, May 20, 2019
Author: KB Administrator

Online URL: https://www.knowledgebase-script.com/kb/article/phpkb-api-reference-guide-176.html