如何将资源转换为字符串（Nette）

Question

I have image in PostgreSQL. I saved it as bytea (escaped by pg_escape_bytea ). But I cannot get unescaped data for sending to browser:

pg_unescape_bytea() expects parameter 1 to be string, resource given

$image = $this->imgRepos->getRecord($id);
$rawimage = pg_unescape_bytea($image->picture);

Answer 1

$rawimage = pg_unescape_bytea(base64_encode($image->picture));

有没有base 64编码的解决方案，它允许您按原样读取图像，但是它需要读取文件-我不确定它将采用二进制图像：

$rawimage = pg_unescape_bytea(file_get_contents($image->picture));