跳过内存限制和版本错误使用下面的代码:

COMPOSER_MEMORY_LIMIT=-1 composer require <package-name> --ignore-platform-reqs

有时问题出在作曲家的内存限制上。在我的情况下，我尝试增加php内存限制，但仍然得到错误。 您可以使用COMPOSER_MEMORY_LIMIT=-1来解决这个问题。 把它用作前缀:

COMPOSER_MEMORY_LIMIT=-1 composer require the/library

以后还得再加上前缀。

希望这能有所帮助。

要获取当前的memory_limit值，运行:

php -r "echo ini_get('memory_limit').PHP_EOL;"

尝试增加php.ini文件中的限制(例如/etc/php5/cli/php.ini对于debian类系统):

; Use -1 for unlimited or define an explicit value like 2G
memory_limit = -1

或者，你可以用命令行参数增加限制:

php -d memory_limit=-1 composer.phar require hwi/oauth-bundle php-http/guzzle6-adapter php-http/httplug-bundle

要加载php.ini文件，请尝试:

php --ini

另一个快速解决方案:

php composer.phar COMPOSER_MEMORY_LIMIT=-1 require hwi/oauth-bundle php-http/guzzle6-adapter php-http/httplug-bundle

或者是:

COMPOSER_MEMORY_LIMIT=-1 composer require hwi/oauth-bundle php-http/guzzle6-adapter php-http/httplug-bundle

只需设置memory_limit，指定编写器的完整路由。Phar文件和更新，在我的情况下使用命令:

php -d memory_limit=-1 C:/wamp64/composer.phar update

Here is another way to solve this problem under windows, if you use Wampserver. Indeed at the level of wampserver, there are two php.ini files, that of PHP, which one can find in the location C: \ wamp64 \ bin \ php \ phpx.xx \ php.ini and that of Apache , which can be found at location C: \ wamp64 \ bin \ apache \ apachex.xx \ bin \ php.ini. Both of these files have the memory_limit parameter. So to be sure to solve this problem, it is better to set the memory_limit = -1 parameter in both files at once.

Windows 10;

后藤C: \ ProgramData ComposerSetup \ bin

编辑:composer.bat并在最后一行添加memory_limit=-1，如下所示。

@echo OFF
:: in case DelayedExpansion is on and a path contains ! 
setlocal DISABLEDELAYEDEXPANSION
php -d memory_limit=-1 "%~dp0composer.phar" %*

问题解决了;)