Compiling php with curl, where is curl installed?

The location of the curl installation depends on the operating system and the method used to install it. On Linux systems, it is typically installed in a directory under /usr/local/ or /usr/ . On Windows systems, it may be installed in the C:\Program Files directory. You can check the location of the curl installation on your system by running the command "which curl" on Linux or "where curl" on Windows in the command prompt. It's also important to note that to use curl with PHP, you will need to have the curl extension for PHP installed and enabled in your PHP configuration file (php.ini).