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  • Language
    PHP
  • License
    MIT License
  • Created about 6 years ago
  • Updated over 3 years ago

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Repository Details

πŸ˜πŸ•ΈοΈ WebAssembly runtime for PHP
Wasmer logo

Wasmer PHP

Tests Status Nightly Status License

Website β€’ Docs β€’ Slack Channel


A complete and mature WebAssembly runtime for PHP based on Wasmer.

Features

  • Easy to use: The wasmer API mimics the standard WebAssembly C API,
  • Fast: wasmer executes the WebAssembly modules as fast as possible, close to native speed,
  • Safe: All calls to WebAssembly will be fast, but more importantly, completely safe and sandboxed.

Install

To install the library, follow the classical:

git clone https://github.com/wasmerio/wasmer-php
cd wasmer-php/ext
phpize
./configure --enable-wasmer
make
make test
make install

Note: Wasmer doesn't work on Windows yet.

Examples

Procedural API
<?php 

declare(strict_types=1);

$engine = wasm_engine_new();
$store = wasm_store_new($engine);
$wasm = file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'hello.wasm');
$module = wasm_module_new($store, $wasm);

function hello_callback() {
    echo 'Calling back...' . PHP_EOL;
    echo '> Hello World!' . PHP_EOL;

    return null;
}

$functype = wasm_functype_new(new Wasm\Vec\ValType(), new Wasm\Vec\ValType());
$func = wasm_func_new($store, $functype, 'hello_callback');
wasm_functype_delete($functype);

$extern = wasm_func_as_extern($func);
$externs = new Wasm\Vec\Extern([$extern]);
$instance = wasm_instance_new($store, $module, $externs);

wasm_func_delete($func);

$exports = wasm_instance_exports($instance);
$run = wasm_extern_as_func($exports[0]);

wasm_module_delete($module);
wasm_instance_delete($instance);

$results = wasm_func_call($run, new Wasm\Vec\Val());

wasm_store_delete($store);
wasm_engine_delete($engine);
Object-oriented API
<?php

declare(strict_types=1);

use Wasm;

require_once __DIR__.'/../vendor/autoload.php';

$engine = Wasm\Engine::new();
$store = Wasm\Store::new($engine);

$wasm = file_get_contents(__DIR__.DIRECTORY_SEPARATOR.'hello.wasm');

$module = Wasm\Module::new($store, $wasm);

function hello_callback()
{
    echo 'Calling back...'.PHP_EOL;
    echo '> Hello World!'.PHP_EOL;

    return null;
}

$functype = Wasm\Functype::new(new Wasm\Vec\ValType(), new Wasm\Vec\ValType());
$func = Wasm\Module\Func::new($store, $functype, 'hello_callback');

$extern = $func->asExtern();
$externs = new Wasm\Vec\Extern([$extern->inner()]);
$instance = Wasm\Module\Instance::new($store, $module, $externs);

$exports = $instance->exports();
$run = $exports[0]->asFunc();

$args = new Wasm\Vec\Val();
$results = $run($args);

This example covers the most basic Wasm use case: we take a Wasm module (in its text representation form), create an instance from it, get an exported function and run it.

You can go through more advanced examples in the dedicated directories:

Supported platforms and features

Platforms

Platform Architecture Status
Linux amd64 βœ…
Linux aarch64 ❌
Windows amd64 ❌
Darwin amd64 βœ…
Darwin aarch64 ❌
PHP Status
8.0 βœ…
7.4 ❌
7.3 ❌

Features

Compilers and engines

Compiler Status
Cranelift βœ…
LLVM ❌
Singlepass ❌
Engine Status
Native βœ…
JIT βœ…
Object File ❌

Runtime

Object Status
config βœ…
engine βœ…
store βœ…

Types

Type Status
valtype βœ…
functype βœ…
globaltype βœ…
tabletype βœ…
memorytype βœ…
externtype βœ…
importtype βœ…
exporttype βœ…

Objects

Object Status
val βœ…
frame βœ…
trap βœ…
foreign βœ…
module βœ…
func βœ…
global βœ…
table πŸ§‘β€πŸ’»
memory βœ…
extern βœ…
instance βœ…

Misc

Feature Status
WAT βœ…
WASI ❌
Cross Compilation ❌

License

The entire project is under the MIT License. Please read the LICENSE file.

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