我被困了好几个小时.在网上找到的解决方案很少,但似乎没有人帮助我.我有问题在浏览器上使用 PHP从浏览器中显示图像,从Postgres DB获取列类型为bytea的图像.我确定我在这里遗漏了一些东西.所以一些指导真的很感激.所以我有以下代码：

$PRod = new Product();
$prod->display_latest_product();
if( $prod->exists() ){
    $products = $prod->data();
    foreach($products as $product){
        echo $product->id;
        echo $product->binarydata;

        /* Solution below: I only get one image wITh broken link */
        header('Content-tyPE: image/png');
        echo pg_unescape_bytea($product->binarydata);

        /* Solution below: I only get one image with broken link */
        header('Content-Type: image/png'); 
        $data=fgets($product->binarydata); 
        print(pack('H*',$data));

        /* bin2hex() expects parameter to be string but resource given */
        echo bin2hex($product->binarydata);

         /* Solution below: I only get one image with broken link */
        $image = stripcslashes($product->binarydata);
        header("Content-Type: image/png");
        print($image);
    }
}

我很欣赏这方面的一些解释,因为我在研究和阅读后仍然感到困惑.

header("Content-Type: ".$product->;mimetype);
fpassthru($product->binarydata);

foreach($products as $product){
    ob_start(); // Let's start output buffering.
    fpassthru($binarydata); //This will normally output the image,but because of ob_start(),it won't.
    $contents = ob_get_contents(); //Instead,output above is saved to $contents
    ob_end_clean(); //End the output buffer.

    $dataUri = "data:image/png;base64," . base64_encode($contents);
    echo "<img src='$dataUri' />";
}