string fread (int fp, int length)
Fread() reads up to length bytes from the file pointer referenced by fp. Reading stops when length bytes have been read or EOF is reached, whichever comes first.
// get contents of a file into a string
$filename = "/usr/local/something.txt";
$fd = fopen ($filename, "r");
$contents = fread ($fd, filesize ($filename));
fclose ($fd);
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See also fwrite(), fopen(), fsockopen(), popen(), fgets(), fgetss(), fscanf(), file(), and fpassthru().