如何使用PHP将图片加载到bytea字段的img标签中？

Question

我如何使用php将图像加载到bytea字段的img标签中？我正在使用Postgresql数据库

我尝试过的事情：

<?php
// Connect to the database
$con_qupos = pg_connect('host=192.168.60.254 dbname=dbqupos user=postgres password=12345') or die(pg_last_error());

// Get the bytea data
$res = pg_query('select foto from "schSuperCristian".articulo_foto where codigo_referencia='."'8711600305960'");
$raw = pg_fetch_result($res, 'foto');

// Convert to binary and send to the browser
header('Content-type: image/jpeg');
echo pg_unescape_bytea($raw);
?>