Adword api to access keyword volume from a url

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PHP

API

I m new to adword api i have setup all the account and have all the credentials need to make a api call.

i have developerToken,clientCustomerId,clientId,clientSecret but the api lib is too complicated for me(PHP lib) is there a way to get data in json format like we do for other calls like i use 'https://www.googleapis.com/pagespeedonline/v3beta1/mobileReady?key='.$apiKey.'&url='.$url.'&strategy=mobile to get result if website is mobile friendly or not

is there any way to do something like this for keyword search volume

What I have tried:

I m new to adword api i have setup all the account and have all the credentials need to make a api call.

i have developerToken,clientCustomerId,clientId,clientSecret but the api lib is too complicated for me(PHP lib) is there a way to get data in json format like we do for other calls like i use 'https://www.googleapis.com/pagespeedonline/v3beta1/mobileReady?key='.$apiKey.'&url='.$url.'&strategy=mobile to get result if website is mobile friendly or not

is there any way to do something like this for keyword search volume