如何使用php在正文中嵌入图像？

<img src="image.php" alt="Embedded Image">

$image = imagecreatefromjpeg('path/to/image.jpg');

// 调整图像大小
$newWidth = 300;
$newHeight = 200;
$resizedImage = imagescale($image, $newWidth, $newHeight);

// 添加水印
$watermark = imagecreatefrompng('path/to/watermark.png');
$watermarkWidth = imagesx($watermark);
$watermarkHeight = imagesy($watermark);
$positionX = ($newWidth - $watermarkWidth) / 2;
$positionY = ($newHeight - $watermarkHeight) / 2;
imagecopy($resizedImage, $watermark, $positionX, $positionY, 0, 0, $watermarkWidth, $watermarkHeight);

header('Content-Type: image/jpeg');
imagejpeg($resizedImage);

imagedestroy($resizedImage);