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问题:
I'm trying to install Facebook PHP SDK with Composer. This is what I get
$ composer install Loading composer repositories with package information Installing dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages. Problem 1 - Installation request for facebook/php-sdk dev-master -> satisfiable by facebook/php-sdk[dev-master]. - facebook/php-sdk dev-master requires ext-curl * -> the requested PHP extension curl is missing from your system.
Problem is, I have curl extension enabled (uncommented in php.ini). When I run phpinfo(), it says it's enabled. Only clue I have is that when I run $ php -m, 'curl' line is missing but I don't know what to do about it.
I have wamp 2.4 on Win8 and I'm running composer in cmd.exe.
回答1:
This is caused because you don't have a library php5-curl installed in your system,
On Ubuntu its just simple run the line code below, in your case on Xamp take a look in Xamp documentation
sudo apt-get install php5-curl
For anyone who uses php7.0
sudo apt-get install php7.0-curl
For those who uses php7.1
sudo apt-get install php7.1-curl
For those who use php7.2
sudo apt-get install php7.2-curl
回答2:
This worked for me: http://ubuntuforums.org/showthread.php?t=1519176
After installing composer using the command curl -sS https://getcomposer.org/installer | php just run a sudo apt-get update then reinstall curl with sudo apt-get install php5-curl. Then composer's installation process should work so you can finally run php composer.phar install to get the dependencies listed in your composer.json file.
回答3:
As Danack said in comments, there are 2 php.ini files. I uncommented the line with curl extension in the one in Apache folder, which is php.ini used by the web server.
Composer, on the other hand, uses php for console which is a whole different story. Php.ini file for that program is not the one in Apache folder but it's in the PHP folder and I had to uncomment the line in it too. Then I ran the installation again and it was OK.
回答4:
on php7 run for example:
> sudo apt-get install php-curl > sudo apt-get install php-mbstring
for every missing extension. Then:
> sudo apt-get update
and finally (in the project's root folder):
> composer install
回答5:
I ran into the same issue trying to install Dropbox SDK.
CURL was indeed enabled on my system but this meant by the php.ini in the wamp\bin\apache folder.
I simply had to manually edit the php.ini situated in wamp\bin\php, uncomment the extension=php_curl.dll line, restart Wamp and it worked perfectly.
Why there are those 2 php.ini and only one is used is still a mystery for me...
Hope it's helpul to someone!
回答6:
I had this problem after upgrading to PHP5.6. My answer is very similar to Adriano's, except I had to run:
sudo apt-get install php5.6-curl
Notice the "5.6". Installing php5-curl didn't work for me.
回答7:
According to https://github.com/composer/composer/issues/2119 you could extend your local composer.json to state that it provides the extension (which it doesn't really do - that's why you shouldn't publicly publish your package, only use it internally).
回答8:
I ran into a similar issue when trying to get composer to install some dependencies. It turns out the .dll my version of Wamp came with had a conflict, I am guessing, with 64 bit Windows.
This url has fixed curl dlls: http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/
Scroll down to the section that says: Fixed Curl Extensions.
I downloaded "php_curl-5.4.3-VC9-x64.zip". I just overwrote the dll inside the wamp/bin/php/php5.4.3/ext directory with the dll that was in the zip file and composer worked again.
I am running 64 bit Windows 8.
Hope this helps.
回答9:
Enable in php 7 try below command
sudo apt-get install php7.0-curl
回答10:
if use wamp go to:
wamp\bin\php\php.5.x.x\php.ini find: ;extension=php_curl.dll remove (;)
