显示数据库中blob类型的图片，小弟我图片显示不出来

显示数据库中blob类型的图片，我图片显示不出来
showimage.php

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/utilityfunction/SqlHelp.class.php';

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/Comm.class.php';



$SqlHelper = new SqlHelp ( 'read', 'qztoa' );

$sql = "select * from qzt_image";

$query = $SqlHelper->query($sql );

$query_num = $SqlHelper->num_rows ($query );



$rows = array ();  

$retarr = array (); 

$query =$SqlHelper->query ( $sql );

if($query)

{

$arr_teainfo2 = array ();

while ( $arr_teainfo = $SqlHelper->fetch_assoc($query) ) {

$arr_teainfo2 [] = $arr_teainfo;

$Id=$arr_teainfo["Id"];

echo $arr_teainfo["Id"];

echo ""; 



}

}







?>  

Second.php3

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/utilityfunction/SqlHelp.class.php';

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/Comm.class.php';



$SqlHelper = new SqlHelp ( 'read', 'qztoa' );

$sql = "select * from qzt_image where Id=10";

$query = $SqlHelper->query($sql );

$query_num = $SqlHelper->num_rows ($query );



$rows = array ();  

$retarr = array (); 

$query =$SqlHelper->query ( $sql );

if($query)

{

$arr_teainfo2 = array ();

while ( $arr_teainfo = $SqlHelper->fetch_assoc($query) ) {

$arr_teainfo2 [] = $arr_teainfo;

$Id=$arr_teainfo["Id"];

$imagetype=$arr_teainfo["imagetype"];

//echo $arr_teainfo["images"];

//Header( "Content-type: $imagetype"); 

header('Content-type: $imagetype');

echo $arr_teainfo["images"];



}

}



?>   

请问我哪里有问题？PHP新人，不知道哪里错了 PHP

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------解决方案--------------------

引用:

Quote: 引用:

图片显示不出来，是程序报错？还是路径不对。
先打印下，看有数据没，如果有，再看下，显示的路径是否正确。

先运行php3把image打印出来了，正常的，没有报错

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/utilityfunction/SqlHelp.class.php';

include_once dirname(dirname (dirname ( __FILE__ ))). '/yeqztsys1.0/Comm.class.php';



$SqlHelper = new SqlHelp ( 'read', 'qztoa' );

$sql = "select * from qzt_image where Id=10";

$query = $SqlHelper->query($sql );