form表单普通提交预览显示，读取显示tmp文件
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>test</title>
<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.2.js'></script>
</head>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
<input name="file" type="file" />
<input type="submit" value="submit" />
</form
</body>
</html>
<?php $file = $_FILES['file']; $file_type = $file['type']; $file_name = $file['name']; $tmp_name = $file['tmp_name']; function LoadPNG($imgname) { /* Attempt to open */ $im = @imagecreatefrompng($imgname); /* See if it failed */ if(!$im) { /* Create a blank image */ $im = imagecreatetruecolor(604, 395); $bgc = imagecolorallocate($im, 255, 255, 255); $tc = imagecolorallocate($im, 0, 0, 0); imagefilledrectangle($im, 0, 0, 604, 395, $bgc); /* Output an error message */ imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc); } return $im; } header('Content-Type: image/png'); $img = LoadPNG($tmp_name); imagepng($img); imagedestroy($img); echo $img.'<br>'; echo $tmp_name.'<br>';
