Binary data is represented as a string in PHP. The most common source of this data is from the pack and unpack functions. It allows you to transfer arbitrary binary data between Rust and PHP.

T parameter&T parameterT Return type&T Return typePHP representation

The binary type is represented as a string in PHP. Although not encoded, the data is converted into an array and then the pointer to the data is set as the string pointer, with the length of the array being the length of the string.

Binary<T> is valid when T implements Pack. This is currently implemented on most primitive numbers (i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64).

Rust Usage

#![cfg_attr(windows, feature(abi_vectorcall))]
extern crate ext_php_rs;
use ext_php_rs::prelude::*;
use ext_php_rs::binary::Binary;

pub fn test_binary(input: Binary<u32>) -> Binary<u32> {
    for i in input.iter() {
        println!("{}", i);

    vec![5, 4, 3, 2, 1]
fn main() {}

PHP Usage


$data = pack('L*', 1, 2, 3, 4, 5);
$output = unpack('L*', test_binary($data));
var_dump($output); // array(5) { [0] => 5, [1] => 4, [2] => 3, [3] => 2, [4] => 1 }