今天在运行composer update时遇到的，详细的错误消息如下：
$ composer update Loading composer repositories with package information Updating dependencies (including require-dev) PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 32 bytes) in phar:///usr/local/Cellar/composer/ 1.0.0-alpha8/libexec/composer.phar/src/Composer/DependencyResolver/ Rule.php on line 62 Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 32 bytes) in phar:///usr/local/Cellar/composer/ 1.0.0-alpha8/libexec/composer.phar/src/Composer/DependencyResolver/ Rule.php on line 62 |
一直以为是网络原因，最近连接国外的网络不是很稳定，后来根据报错的信息Allowed memory size of 536870912 bytes exhausted提示知道可能是内存分配不够，大家知道在PHP的配置文件php.ini中有限制脚本运行内存的设置memory_limit把这个值调大一些就可以解决这个问题了。
memory_limit = 1G |
当然大家也许不喜欢随随便便的改动配置文件php.ini，在帖子《Composer update runs out of memory #1898》Dynom给出了个临时的解决办法：
php -dmemory_limit=1G composer.phar update |
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