PHP Warning: PHP Startup: Unable to load dynamic library php_curl.dll impossibile find

Question

I have Windows 10 with WAMP server (Apache 2.4.9, PHP 5.5.29 VC11 x64, e MySQL). All works fine, but now I will use curl extension.

I go into C:\wamp\bin\php\php5.5.29\phpForApache.ini (from webserver configuration) and remove the comment from extension=php_curl.dll

reload apache server and in error_log I have

[22-Sep-2015 13:13:30 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.5.29/ext/php_curl.dll' - Impossibile trovare il modulo specificato.in Unknown on line 0

The DLL is on the correct folder and the other DLLs work fine.

1° try: I added in system var PATH: C:/wamp/bin/php/php5.5.29/ext/;c:/wamp/bin/php/php5.5.29/

2° try: I have re-dowload the file php-5.5.29-Win32-VC11-x64.zip and replaced the php_curl.dll

But I have always the same result: index.php

Fatal error: Call to undefined function curl_exec()

phperror_log:

[22-Sep-2015 13:13:30 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.5.29/ext/php_curl.dll' - Impossibile trovare il modulo specificato.in Unknown on line 0

Trainload

in Unknown on line 0 this is odd. Can you see curl information on phpinfo(); ? – Bills

only "cURL Sterling Hughes " in modules author – Trainload

if i comment an uncomment php_imap.dll i see the load e not load module , but the curl don't work never – Trainload

myabe there is something in window 10 – Trainload

sometimes, it happens just because of incompatible curl version, you can test it by downloading 32/64 bit curl libs – Veroniqueverras

Do you still have that problem? It solved for me when I copied libeay32.dll and ssleay32.dll from another curl installation into Apache's bin folder. – Pebbly

also me i had solved when i copied these files – Trainload

next time dont copy your error message on your native language. By accident, I know this is Italian, and "cant find the module" – Mal

Answer 1

These steps worked for me:

1. Add the main php folder onto the Path Env variable in Windows (so libeay32.dll and ssleay32.dll are path-accessible ... some people copy these to Windows/System32 to make them path-accessible but that isn't really elegant way to solve issue)

2. Add the Apache bin folder onto the Path Env variable in Windows

3. Copy the file libssh2.dll from the php folder to apache's bin folder (Apache seems to need this for php's curl to work in Windows)

Fencing

Only the 3rd method worked for me on PHP 5.6.31 with Apache 2.4.28. – Sparerib

The 3rd method worked for me also, on the same configuration than @ilhan. – Womanhater

"Add the main php folder onto the Path Env variable" juste that, perfect ! – Paling

Number 3 does the trick. 1 and 2 are not needed, as it's clear in the original post that Apache is already looking in the right place for the dll. The problem is it can't load it. – Indent

Only the 3rd method worked for me on apache 2.4.48 and php 8.1.0. Thx a lot !!! – Telex

Regarding "Add the Apache bin folder onto the Path Env variable in Windows": It worked for me only by adding to System variables. It didn't work for "User variables for USERNAME", so not to be confused :) – Sideways

Thank you so much. The 3rd was the solution. I had a different version of the lib on Apache' bin dir. I changed it for the correct version on php – Gena

Answer 2

PHP Startup: Unable to load dynamic library 'curl' ... Uncommenting 2 lines in the php.ini file solves this

1. Open php.ini
2. Remove semicolon to uncomment ;extension_dir = "ext" If your php is in C under the folder "php" for example, your extension_dir = "ext" should be put as extension_dir = "C:\php\ext"
3. Remove semicolon to uncomment ;extension=curl
4. Save php.ini

Cotto

This worked for a PHP 8.x installation – Historicity

worked for me on php8.2 but don't forget to make service apache2 restart – Transcendentalistic

Answer 3

What worked for me I copied :

• libssh2.dll,
• libcrypto-1_1-x64.dll,
• libssl-1_1-x64.dll,
• ssleay32.dll,
• libeay32.dll

to Apache bin folder. Probably not all of those are needed.

Next

1. In php.ini, make sure the extension curl is loaded. This will be extension=php_curl.dll for php < 7 and extension=curl for php > 7

2. Restart Apache Service

Noncooperation

For me it was sufficient to copy libeay32.dll and ssleay32.dll – Greenwald

Answer 4

Make sure that in php.ini, extension_dir = points to the correct path if it's uncommented.

Reclaim

Answer 5

Another possibility is an incompatibility between the version of apache and php, at least if you're using wampserver and/or missing VC++ executables. I was using php 7.4.11 and apache 2.4.27. Upgrading to apache 2.4.46d and installing missing executables solved the problem. That version of apaache also requires updating wampserver to 3.2.5. Make sure ALL the windows VC++ executable are installed. There is a small tool to check this. The updates and tools are found at https://wampserver.aviatechno.net/

@see http://forum.wampserver.com/read.php?2,151396

I performed the wampserver/apache update and installed some missing VC++ files all at once, so I can't be certain which thing actually fixed the problem loading curl.

Balbo

After spending several hours looking for a solution, upgrading apache solved my curl problem ! – Pervasive

Answer 6

i was facing the same error with wamp on windows the problem solved when i deleted another app using php (and making conflict) and reinstall wamp

Kramer

Answer 7

Add to Apache httpd.conf:

LoadFile "C:/Php56/libssh2.dll"
LoadFile "C:/Php56/libeay32.dll"
LoadFile "C:/Php56/ssleay32.dll"

Westwardly