用PHP将图像转换为字节 [英] Convert image to byte with php

问题描述

我必须将图片发送到Web服务。 Web服务应该以字节（可能是字节数组）的形式接收图像，而不是以字符串的形式接收图像。如何将图像转换为字节或字节数组？

I have to send a picture to a webservice. The web service should receive the image as bytes (mayby bytearray) - not as a string... How do I convert the images to "byte" or bytearray?

I尝试过此操作（没有成功）：

I have tried this (without succes):

$image1 = file_get_contents("LINK TO IMAGE");
$image1BinaryData = "".base64_encode($image1)."";

任何帮助将不胜感激...

Any help will be appreciated...

推荐答案

您是否尝试过将图像直接读取为二进制数据？

Have you tried to directly read the image as binary data?

<?php
$filename = "image.png";
$file = fopen($filename, "rb");
$contents = fread($file, filesize($filename));
fclose($file);
?>

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