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[PHP] Re: how to display the binary form of the file with php?




On 13.08.2016 at 03:08, 水静流深 wrote:

> Every file can be displayed in the binary form no matter which encoding the file is.(utf-8 gbk  iso-8859-1  latin-1)
>      
>     `xxd  filename` can do the trick.
> 
> Now i want to do with php,here is my try.
> 
> 
> <?php     $target="test.txt";     $file_handle = fopen($target, "rb");     while (!feof($file_handle)) {        $byte = fread($file_handle,1);        echo $byte;     }     fclose($file_handle ); ?> 
> It is unlucky that all the character is not displayed on binary form,how to  fix `echo $byte`  ?

You can use `echo dechex($byte);` instead.  printf() might be
preferable, though.

Note that reading a file bytewise might be rather slow in PHP.  Consider
to read chunks of bytes instead.

-- 
Christoph M. Becker


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