$contents = "All the content"; $dir = ‘c:‘; $file_path = $dir . "\\content.txt"; if(is_writable($file_path)) { file_put_contents($file_path , $contents); } else { die("Directory $dir is not writable, or does not exist. Please check"); }
原文：http://www.cnblogs.com/dangkei/p/3953290.html