本文介绍了Composer.phar 不想由 shell_exec 从 PHP 脚本运行.为什么?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
Trying to execute it with all possible params, such as -d and full path etc.. No errors. When running another commands, all is ok, when running composer from CMD, all is ok too. Have tried exec, system, shell_exec etc.. What it could be?
echo system('php composer.phar install');
解决方案
Try outputting the error stream as well:
system('php composer.phar install 2>&1');
It might give you more of a hint as to what is going wrong.
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