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解析php中如何直接执行SHELL_PHP

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Release: 2016-06-01 12:04:21
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$message=shell_exec("sudo /usr/local/webserver/nginx/sbin/nginx -t 2>&1");
echo "运行结果:".$message."
";
 
上面的语句可以直接在PHP中执行SHELL语句

如果有返回值 那么其中的 2>&1 是必须的  他会重定向输出strerr 转到strout 输出!

否则返回结果会为空!

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