cURL error 60: SSL certificate problem: unable to get local issuer certificateThis problem can occur when developing locally on windows. I am using windows 10 (x64)In order to fix the error, I downloaded cacert.pem from https://curl.haxx.se/docs/caextract.htmlSet the following value for in php.inicurl.cainfo = "C: \ php-8.0.7 \ extras \ ssl \ cacert.pem"

cURL error 60: SSL certificate problem: unable to get local issuer certificateThis local development error comes when curl.cainfo variable is not set correctly.I faced this issue in PHP Version 7.3.1In order to fix the error, I downloaded cacert.pem from https://curl.haxx.se/docs/caextract.htmlSet the following paths in php.inicurl.cainfo="D:\wamp64\bin\php\php7.3.1\extras\ssl\cacert.pem"openssl.cafile="D:\wamp64\bin\php\php7.3.1\extras\ssl\cacert.pem"Even after adding the paths and restart Apache, Inside phpinfo(), both the paths were showing blank.The error will go only if we set via php code of the project.Example code worked for me :-$guzzle = new \GuzzleHttp\Client(['verify' => 'D:\wamp64\bin\php\php7.3.1\extras\ssl\cacert.pem']);

I was editing wrong php.ini file in last comment.Even though loaded configuration path was showing as "D:\wamp64\bin\apache\apache2.4.37\bin\php.ini" inside phpinfo() of WAMP Server, It was actually loading "D:\wamp64\bin\apache\apache2.4.37\bin\phpForApache.ini"Once I set both the variables inside phpForApache.ini, details are displayed in phpinfo() and error has gone without extra coding line.