Here is a paragraph excerpted from w3schools.com:
"If your server supports PHP you don't need to do anything. Just create some .php files in your web directory, and the server will parse them for you. Because it is free, most web hosts offer PHP support. However, if your server does not support PHP, you must install PHP."
According to its definition, PHP is a server-side script language, that is, a programming language. Just as its counterpart javascript in the client side, what we need to do is write the correct code, we don't need to install javascript, do we? So here is what I can't understand: how can we install a programming language?
"If your server supports PHP you don't need to do anything. Just create some .php files in your web directory, and the server will parse them for you. Because it is free, most web hosts offer PHP support. However, if your server does not support PHP, you must install PHP."
According to its definition, PHP is a server-side script language, that is, a programming language. Just as its counterpart javascript in the client side, what we need to do is write the correct code, we don't need to install javascript, do we? So here is what I can't understand: how can we install a programming language?