php图片上传一例

<?php

//insertimage.php

//上传图片插入数据库

if (isset($HTTP_POST_VARS["Submit2"]))

{

$pos = $HTTP_POST_VARS["pos"];

$filename = $HTTP_POST_FILES["file"]["tmp_name"];

$size = $HTTP_POST_FILES["file"]["size"];

if ($size<=204800)

{

$img = addslashes(fread(fopen($filename,"r"),$size));

$link=mysql_connect("127.0.0.1","user","psw") or die("Could not connect: ".mysql_error());

mysql_select_db("action",$link);

$sql = "update actionSeek set pos='$pos',img='$img' where ZGMName='".$_SESSION["ZGMName"]."'";

if ($result = mysql_query($sql))

print("<script>alert('上传成功');</script>");

else

print("<script>alert('上传失败')</script>");

}

}

?>

<?php

//showimage.php

//显示数据库里的图片

session_start();

$link=mysql_connect("127.0.0.1","user","pwd") or die("Could not connect: ".mysql_error());

mysql_select_db("action",$link);

$sql = "select img from actionSeek where ZGMName='".$_SESSION["ZGMName"]."'";

$result = mysql_query($sql);

if ($row = mysql_fetch_array($result))

{

print ($row["img"]);

}

?>