index.php

<?php


class Vk {
	private $vk;
	private $owner;

	public function __construct( vk $vk, $user = null, $group = null ) {
		$this->vk = $vk;
		if ( ! $user && ! $group ) {
			throw new \Exception( 'Not found group or user' );
		}
		$this->owner            = [
			'type'  => $user ? 'owner_id' : 'group_id',
			'value' => $user ? $user : $group,
		];
		$this->owner[ 'value' ] = (int) preg_replace( '/([^\d]+)/', '', $this->owner[ 'value' ] );
	}

	public function post( $text, $img = null ) {

		if ( $img ) {
			$img = 'photo'.$this->owner[ 'value' ].'_'.$this->load( $img )->response[ 0 ]->id;
		}
		$data = [
			'message'  => $text,
			'owner_id' => $this->owner[ 'value' ],
		];
		if ( $img ) {
			$data[ 'attachments' ] = $img;
		}
		if ( $this->owner[ 'type' ] === 'group_id' ) {
			$data[ 'owner_id' ] = '-' . $data[ 'owner_id' ];
		}

		var_dump($data);
		die();
		$data = $this->vk->get( 'wall.post', $data );
		if ( isset( $data->error ) ) {
			throw new \Exception( $data->error->error_msg );
		}

		return $data;
	}

	private function load( $src ) {
		$photo                           = (array) $this->getPhoto( $src );
		$photo[ $this->owner[ 'type' ] ] = $this->owner[ 'value' ];
		$data                            = $this->vk->get( 'photos.saveWallPhoto', $photo );

		return $data;
	}

	private function getPhoto( $src ) {
		$name = __DIR__ . DIRECTORY_SEPARATOR . '1.png';
		file_put_contents( $name, file_get_contents( $src ) );


		$ch = curl_init( $this->getServer() );
		curl_setopt( $ch, CURLOPT_POST, true );
		curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
		curl_setopt( $ch, CURLOPT_HTTPHEADER, [ 'Content-Type: multipart/form-data; charset=UTF-8' ] );
		curl_setopt( $ch, CURLOPT_POSTFIELDS, [
			'photo' => '@' . $name
//			'photo' => new \CURLFile( '/' . $name ),
		] );
		$response = curl_exec( $ch );
		curl_close( $ch );

		return json_decode( $response );
	}

	private function getServer() {
		$data = $this->vk->get( 'photos.getWallUploadServer', [
			$this->owner[ 'type' ] => $this->owner[ 'value' ],
		] );

		return $data->response->upload_url;
	}
}