fread

The fread function is used to read the contents of a file previously opened using the function fopen .

The function takes two parameters: the file pointer and the length (in bytes) to read.

If we were to read only the first 100 bytes will:

 



 <? Php







 / / Open file for reading







 $ Myfile = fopen ('readme.txt', 'r');









 / / Read the first 100 bytes







 fread ($ myfile, 100);









 / / Close the cursor







 fclose ($ myfile);







 ?>

 

If, instead, I wanted to read the entire contents of the file I used:

 



 <? Php







 / / Open file for reading







 $ Myfile = fopen ('readme.txt', 'r');









 / / Stored in a variable length file







 $ Bytes = filesize ('readme.txt');









 / / Read the file for the entire length







 fread ($ myfile, $ bytes);









 / / Close







 fclose ($ myfile);







 ?>

 

Note: If you simply want to extract the contents of a file you should use the function file_get_contents () .