Notice: Use of undefined constant CURL_IPRESOLVE - assumed 'CURL_IPRESOLVE' Notice: Use of undefined constant CURL_IPRESOLVE - assumed 'CURL_IPRESOLVE' curl curl

Notice: Use of undefined constant CURL_IPRESOLVE - assumed 'CURL_IPRESOLVE'


php curl ipv6 ipv4

you have to use CURL_IPRESOLVE_WHATEVER for both IP versions

curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_WHATEVER);

More information refere this DOC

php curl ipv6 ipv4

To use specifically IPv4, use

curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);

Official doc here: http://php.net/manual/en/function.curl-setopt.php

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