getting warning for curl extension in php8.4

[adeshmrane]

Description

PHP Warning: PHP Startup: Unable to load dynamic library 'php_curl.dll' (tried: C:/Program Files/Ampps\php84\ext\php_curl.dll (The specified procedure could not be found), C:/Program Files/Ampps\php84\ext\php_php_curl.dll.dll (The specified module could not be found)) in Unknown on line 0

I am getting the above error when I am using the Windows binary provided on your site.

PHP Version

php 8.4.1

Operating System

windows 10

[cmb69]

I assume that some php_curl.dll dependencies are not in the PATH. This is possibly about libssh2.dll which needs to be version 1.11.1 (or 1.11), but not 10.0.0 or even older. See also #16794.

If a recent libssh2.dll is in the path, use deplister.exe (contained in the downloads from window.php.net) to check further dependencies (deplister php_curl.dll). Also make sure that you are using a recent Microsoft Visual C++ redistributable.

[adeshmrane]

Hi,

The folder contains libssh2.dll of version 1.11.1.

tried with deplister.exe and got the output below.
C:\Users\Yash>E:\Ampps\php84\deplister.exe E:\Ampps\php84\ext\php_curl.dll
php8ts.dll,OK
libcrypto-3-x64.dll,OK
libssl-3-x64.dll,OK
CRYPT32.dll,OK
WLDAP32.dll,OK
Normaliz.dll,OK
libssh2.dll,OK
nghttp2.dll,OK
KERNEL32.dll,OK
ADVAPI32.dll,OK
WS2_32.dll,OK
VCRUNTIME140.dll,OK
api-ms-win-crt-heap-l1-1-0.dll,NOTFOUND
api-ms-win-crt-stdio-l1-1-0.dll,NOTFOUND
api-ms-win-crt-string-l1-1-0.dll,NOTFOUND
api-ms-win-crt-runtime-l1-1-0.dll,NOTFOUND
api-ms-win-crt-convert-l1-1-0.dll,NOTFOUND
api-ms-win-crt-filesystem-l1-1-0.dll,NOTFOUND
api-ms-win-crt-utility-l1-1-0.dll,NOTFOUND
api-ms-win-crt-time-l1-1-0.dll,NOTFOUND
api-ms-win-crt-math-l1-1-0.dll,NOTFOUND

i have Latest Microsoft Visual C++ Redistributable Version installed
installed both x64 and x86 version too

[cmb69]

PHP Warning: PHP Startup: Unable to load dynamic library 'php_curl.dll' (tried: C:/Program Files/Ampps\php84\ext\php_curl.dll (The specified procedure could not be found)

C:\Users\Yash>E:\Ampps\php84\deplister.exe E:\Ampps\php84\ext\php_curl.dll

These are different paths. Is it possible that Apache picks up the wrong php.ini, or that you have not configured extension_dir correctly?

[adeshmrane]

Other extensions from that same extension_dir are loading properly

[cmb69]

Okay, but then checking E:\Ampps\php84\ext\php_curl.dll is useless. Anyhow, using deplister.exe from the console isn't verifying the real thing. You need to put deplister.exe into the folder where httpd.exe is (possibly C:\Program Files\Ampps\apache\bin), and then to set up a small script in the doc root:

<?php

$apache_bin = "C:\\Program Files\\Ampps\\apache\\bin"; // may need to change this
$extension_dir = ini_get("extension_dir");
passthru("\"$apache_bin\\deplister.exe \" \"$extension_dir\\php_curl.dll\"");

Then request this document, and see whether all DLLs are OK. If any are NOTFOUND, this needs to figured out first.

[adeshmrane]

after running the script given I am getting

php8ts.dll,OK libcrypto-3-x64.dll,OK libssl-3-x64.dll,OK CRYPT32.dll,OK WLDAP32.dll,OK Normaliz.dll,OK libssh2.dll,OK nghttp2.dll,OK KERNEL32.dll,OK ADVAPI32.dll,OK WS2_32.dll,OK VCRUNTIME140.dll,OK api-ms-win-crt-heap-l1-1-0.dll,NOTFOUND api-ms-win-crt-stdio-l1-1-0.dll,NOTFOUND api-ms-win-crt-string-l1-1-0.dll,NOTFOUND api-ms-win-crt-runtime-l1-1-0.dll,NOTFOUND api-ms-win-crt-convert-l1-1-0.dll,NOTFOUND api-ms-win-crt-filesystem-l1-1-0.dll,NOTFOUND api-ms-win-crt-utility-l1-1-0.dll,NOTFOUND api-ms-win-crt-time-l1-1-0.dll,NOTFOUND api-ms-win-crt-math-l1-1-0.dll,NOTFOUND

[cmb69]

So basically the same as when running from the command line. These DLLs are part of the UCRT (universal C runtime), and should be installed on any Windows 10 system). See https://learn.microsoft.com/en-us/cpp/windows/universal-crt-deployment for details. I have no idea why these DLLs are apparently missing on your system. They are required for PHP on Windows for a very long time.

But then you say that other extensions and apache2handler would load fine, but these also depend on these DLLs. So I'm back to guessing what the actual problem is. Perhaps it's about nghttp2.dll; PHP 8.4.1 ships with version 1.63.0.0, but Apache might have an older nghttp2.dll in the bin\ folder. Maybe replace that with that shipped with PHP and try again (keep a backup of the old one in case that breaks other stuff).

[adeshmrane]

Hi @cmb69 ,

Thanks for your valuable time.

I found that the libssh2.dll file in the Apache bin folder is of an older version causing this.
php84 folder contains the latest one but the Apache bin folder has an older one.

copying libssh2.dll from php84 to the Apache bin folder solved the issue for me.

Thanks again for your time.