某課題

急遽phpとかが必要になったので極私的メモ

#set filename
$filename = 'hogehoge.txt';

#open file
$fp = fopen($filename, 'r');

#create checksum of file
$md5 = md5(fread($fp, filesize($filename)));

#append base64 filter to 'file handle'
stream_filter_append($fp, 'convert.base64-encode');

#get base64 contents of file
$base64_of_file = fread($fp, filesize($filename));

#close file handle
fclose($fp);