dongshi7350 2014-05-21 21:21
浏览 41
已采纳

PHP中的字符串不包括$ variable

Not sure how to properly describe what I want but after lots of googling I need some help.

I'm using PHP to run some shell commands, one of those shell commands creates a file with some configuration information within it from a string. This config information has a part that has the string "$uri" so obviously if I I enclose it in double quotes " it tries to call the variable which doesn't exist. My problem is when I call it in single quotes it's omitting the $uri word entirely... is this normal behavior?

I'll include an example, I'm writing a nginx serverblock file so it's as follows:

$nginxhost = 'server {
    listen 80;

    root /var/www/dev2.host.dev/public_html;
    index index.php index.html index.htm;

    # Make site accessible from http://localhost/
    server_name dev2.host.dev;
    include hhvm.conf;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
        # Uncomment to enable naxsi on this location
        # include /etc/nginx/naxsi.rules
    }
}';

and then executing through ssh2:

"echo \"$passsowrd\" | sudo -S sh -c 'echo \"".$nginxhost."\" >> /etc/nginx/sites-available/dev2.host.dev';";

Should I wrap the entire $nginxhost with {}? or just the $uri?

  • 写回答

1条回答 默认 最新

  • donglvmang8638 2014-05-21 21:34
    关注

    For special characters (which can be interpreted as language syntax) you should use the backslash \ and so \$uri

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 各位请问平行检验趋势图这样要怎么调整?说标准差差异太大了
  • ¥15 delphi webbrowser组件网页下拉菜单自动选择问题
  • ¥15 wpf界面一直接收PLC给过来的信号,导致UI界面操作起来会卡顿
  • ¥15 init i2c:2 freq:100000[MAIXPY]: find ov2640[MAIXPY]: find ov sensor是main文件哪里有问题吗
  • ¥15 运动想象脑电信号数据集.vhdr
  • ¥15 三因素重复测量数据R语句编写,不存在交互作用
  • ¥15 微信会员卡等级和折扣规则
  • ¥15 微信公众平台自制会员卡可以通过收款码收款码收款进行自动积分吗
  • ¥15 随身WiFi网络灯亮但是没有网络,如何解决?
  • ¥15 gdf格式的脑电数据如何处理matlab