var-dump-server:tldr:b70ce
The command "var-dump-server" is used to start a debugging tool called "var-dump-server" which helps developers analyze and inspect variable values in PHP applications.
In the specific command you provided, "--host ${127-0-0-1:9912}" is an option passed to the "var-dump-server" command. Here's the breakdown of the components:
--host: This is an option flag that specifies the host address the var-dump-server should bind to.
${127-0-0-1:9912}: This part defines the host and port to bind. 127.0.0.1 is the loopback address or localhost, which means the var-dump-server will be accessible only from the local machine. The port 9912 is the specific port to bind to.
To summarize, the command is starting the var-dump-server and binding it to the localhost address (127.0.0.1) on port 9912. It allows developers on the same machine to connect to the var-dump-server and inspect variable values of their running PHP applications.