[PHP] parse text

[sonjaya]

i want read some tex like this
 
here contens file text
 
1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ
 
 
1. i want read from first left until eight caracter (12345678  <--
caracter i cant read )
    it can be use fread
2. i want read 5 from nine (9) caracter  from left  ( 0ABCD <--the
caracter must i read )
    so anybody can help me