byte arrays?

[high6]

I was wonder how do byte arrays work in php? Can anyone give me a simple example of getting the bytes of an online file then reading and writing the first few bytes? or something, please.

[visualAd]

PHP deals with file data as strings. That does not however mean that you cannot access the byte values, because a string is an array of bytes. You can read a specific number of bytes using the fread/fwrite function with the file open binary, read or write mode.

You can then convert the string to an array of characters using the str_split function.

$hwnd = fopen('/path/to/file', 'rb');

$data = fread($hwnd, 1024);
$data = str_split($data); 

[high6]

I saw something like

$str{10} to access the 10th character. Does that work too?

[visualAd]

Yes you can do that too.

[penagate]

Yes, but that is the eleventh character, not the tenth.