$filename = "/usr/local/something.txt";
$handle = fopen($filename, "r");//读取二进制文件时,需要将第二个参数设置成'rb'
//通过filesize获得文件大小,将整个文件一下子读到一个字符串中
$contents = fread($handle, filesize ($filename));
fclose($handle);
$a = file_get_content("c:/a.txt")
$fh = fopen("myfile", "rb");
$data = fread($fh, filesize("myfile"));
fclose($fh);