How to display file into binary format with php?

Question

To create a new file ,to input just one enter key and save it as test.txt.
There is only one '\n' in the test.txt.
To display the file with command:

 xxd  -b ./test.txt
 0000000: 00001010

Now i want to do the same job with php.

<?php
function  parse($target){
    $file_handle = fopen($target, "rb");
    while (!feof($file_handle)) {
       $byte = fread($file_handle,1);
       echo  base_convert(ord($byte),10,2);
    }   
    fclose($file_handle );
} 
parse('test.txt');  
?>

The result is 10100 ,how to fix my php code to get the such right answer 00001010 as xxd -b ./test.txt ?
Think to Pyton's code.

<?php
function  parse($target){
    $file_handle = fopen($target, "rb");
    while (!feof($file_handle)) {
       $byte = fread($file_handle,1);
       echo  sprintf("%08s ",base_convert(ord($byte), 10, 2));
    }   
    fclose($file_handle );
} 
$target='test.txt';  
echo filesize($target);
parse($target);
?>

The filesize is 1,but result is 00001010 00000000 ,how to make it to be exactly 00001010?

showkey · Accepted Answer · 2016-08-13 08:20:51Z

1

<?php
function  parse($target){
    $file_handle = fopen($target, "rb");
    $filesize = filesize($target);    
    while (!feof($file_handle)) {
        $byte = fread($file_handle, 1);
        echo sprintf("%'08b", ord($byte));
        if(ftell($file_handle) == $filesize) {
            break;
        }
    }
    fclose($file_handle );
}
parse('test.txt');

Output:

00001010

edited Aug 13, 2016 at 8:20

showkey

36551 gold badges169 silver badges328 bronze badges

answered Aug 13, 2016 at 4:42

Pyton

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1 Comment

showkey Over a year ago

The filesize is 1,but result is 00001010 00000000 ,how to make it to be exactly 00001010?

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