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php – Call to undefined function curl_init() error in wamp 2.2

Posted by: admin April 23, 2020 Leave a comment


I am having below error when I try to implement google and facebook authentication in windows 7 using wamp server.

Fatal error: Call to undefined function curl_init() in
on line 273

I am using,

  • wampserver 2.2
  • php version 5.3.13

I have enabled php_curl module as well. I checked in php.ini for confirm and it is uncommented as below.


The code has worked in ubuntu with xampp, but not in wamp in windows. I have done everything I can find. I have tried replacing the php_curl.dll also according to the comment on this thread, Call to undefined function curl_init() – with WAMP

My phpinfo() looks like below.
enter image description here

I have installed wamp in the partition E:\, but the “Configuration File (php.ini) Path” seems different, it is C:\Windows.

Please help me to fix the issue.

How to&Answers:

Visit this and have a file under Fixed curl extensions:
after download and replace related file then restart server.
In browser navigate to localhost and make sure there is curl extensions showing under Loaded Extensions :


For WAMP running PHP 5.4.3 on Windows 7 64 bit, make sure you use php_curl-5.4.3-VC9-x64.zip NOT php_curl-5.4.3-nts-VC9-x64.zip.


In windows 7 with PHP 5.5.31 after check that php_curl.dll extension is enabled (and still doesnt working), work for me to copy libeay32.dll and libssh2.dll from php directory to Apache bin.


just a guess – this section in php.ini does not reference the correct location

; Directory in which the loadable extensions (modules) reside.
extension_dir = *some value*



Also, look for this block in your phpinfo, if it’s not there, curl isn’t loading (obviously). You’re not looking for matching version numbers – just for the block’s existence.

curl section in phpinfo


look at this question also

PHP and CURL under Windows 7 64 bits and Apache


download this file and replace your php_curl file.



When using WAMP..

  • You should have one file php.ini in the main PHP directory
  • In the php.ini enable the extension extension=php_curl.dll, by removing the ; char
  • The extension_dir must look like this example: extension_dir = "D:\AMP\PHP\ext\", so not a relative path
  • You need to restart Apache server only once. No need to restart it many times
  • Just make sure, you have the php_curl.dll in the ext directory
  • Answer:

    (windows 10 user)

    Since this is the first result in Google and I had exactly the same problem and none of your solutions worked for me and I finally find the correct solution in an other thread of stackoverflow, I’ll post link here :
    EasyPHP Devserver 16.1 Curl Win 10

    The solution is to add the your current PHP directory (depend of which version you use) to your global “path” variable in windows (like explained in the link, but you don’t need to add all php directorias of course)


    Not sure where to put my experience, hope it will be useful for someone.

    In my case (win7 x64 + apache 2.4 + php 7.2), curl extension was enabled in php.ini but did not load. Resolved by replacing libs libssl-1_1-x64.dll and libcrypto-1_1-x64.dll in Apache’s bin folder with the latest builds of OpenSSL


    Change the extention in php.ini file uncomment by removing ; like below


    Then restart all services and it will work.