composer update
时报以下错误:
Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 4096 bytes) in phar:///usr/local/bin/composer/src/Composer/DependencyResolver/RuleWatchGraph.php on line 52
使用Symfony的composer命令突破composer 内存限制问题, 不用修改php.ini中的memory_limit配置.
symfony composer update