php 魔术师调整大小 - 显示图像而不是保存到文件夹

Question

我正在尝试调整图像大小并将其显示在浏览器上。我正在使用 php_image_magician 来调整数据库中的图像大小。它成功调整了图像的大小。我想显示图像而不是 saveImage ($magicianObj -> saveImage('img.jpeg');)。如何正确回显此图像echo "<img src='".???."' />";

require_once(PAGEINC.'php_image_magician.php');
$magicianObj = new imageLib("http://localhost".$newsfirstimgpath);
$magicianObj -> resizeImage(50, 50, 'crop');
$magicianObj -> saveImage('img.jpeg');

Answer 1

你可以使用库的displayImage函数如下：

$magicianObj->displayImage('jpeg',100); // first param tells display as jpeg and second specifies the quality of the image

您可以在 this link 检查第 2529 行以获取 displayImage 参考中的其他可用功能

编辑

在php_image_magician.php中的displayImage函数上方添加以下函数

public function getImageSrc($fileType = 'jpg') {
    ob_start();
    if (!is_resource($this->imageResized)) { if ($this->debug) { die('saveImage: This is not a resource.'); }else{ die(); }}

    switch($fileType)
    {
        case 'jpg':
        case 'jpeg':
            imagejpeg($this->imageResized, NULL, $imageQuality);
            break;
        case 'gif':
            imagegif($this->imageResized);
            break;
        case 'png':
            // *** Scale quality from 0-100 to 0-9
            $scaleQuality = round(($imageQuality/100) * 9);

            // *** Invert qualit setting as 0 is best, not 9
            $invertScaleQuality = 9 - $scaleQuality;

            imagepng($this->imageResized, NULL, $invertScaleQuality);
            break;
        case 'bmp':
            die('bmp file format is not supported.');
            break;
        default:
            // *** No extension - No save.
            die('file extension not supported.');
            break;
    }
    $response = ob_get_contents();
    ob_end_clean();
    return 'data:image/'.$fileType.';base64,' . base64_encode( $response );
}

并使用以下代码回显图像：

echo '<img src="'.$magicianObj->getImageSrc('jpeg').'" />';