Question

php如何把一个文件的所有内容付给一个变量啊

Answer 1

$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);

Answer 2

$a = file_get_content("c:/a.txt")

Answer 3

$fh = fopen("myfile", "rb");
$data = fread($fh, filesize("myfile"));
fclose($fh);