How PHP creates files and writes text

How PHP creates files and writes text
I want to encapsulate a method to create a file and write a text parameter 2 width and height

The effect after implementation
Like 100 300, for example.

The generated file is called S 100300. Less

Inside the content is
@import "Shiying";
@screen_width: + px;
@screen_height: px;


How to write this function. Red to correspond to OH
------Solution--------------------
This post was last edited by xuzuning on 2014-08-27 17:37:16

function mkless ($width, $height) {
  $r [] = [email protected] "shiying";
  $r [] = sprintf ([email protected]_width:%spx; ', $width);
  $r [] = sprintf ([email protected]_height: $spx; ', $height);
  File_put_contents ("S$width$height.less", Join (Php_eol, $r));
}

