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<?php
if (! isset ( $_POST ["submit"] )) {
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"";
} else {
if (isset ( $_FILES ["file"] ) || $_POST ["file"] != "") {
function resizeimage($file, $rate = .5) {
$size = getimagesize ( $file );
switch ($size [2]) {
case 1 :
$img = imagecreatefromgif ( $file );
break;
case 2 :
$img = imagecreatefromjpeg ( $file );
break;
case 3 :
$img = imagecreatefrompng ( $file );
break;
}
$srcw = imagesx ( $img );
$srch = imagesy ( $img );
$detw = floor ( $srcw * $rate );
$deth = floor ( $srch * $rate );
$im = imagecreatetruecolor ( $detw, $deth );
$black = imagecolorallocate ( $im, 255, 255, 255 );
imagefilledrectangle ( $im, 0, 0, $detw, $deth, $black );
imagecopyresized ( $im, $img, 0, 0, 0, 0, $detw, $deth, $srcw, $srch );
header ( 'Content-type:image/png' );
imagepng ( $im );
imagedestroy ( $im );
imagedestroy ( $img );
}
resizeimage ( $_FILES ["file"] ["tmp_name"] );
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Insert title here</title>
<style type="text/css">
td {
margin: 0;
}
</style>
<script type="text/javascript">
function submit(){
obj=document.form1.submit();
return obj;
}
</script>
</head>
<body>
<form name="form1" method="post" enctype="multipart/form-data"
action="<?php
echo $_SERVER ["PHP_SELF"]?>">
<table cellpadding="0" cellspacing="0" border="0"
bordercolordark="#ffffff" bordercolorlight="#0000ff">
<tr>
<td><label>FileUpload : </label></td>
<td><input type="file" name="file"></input></td>
<td><input type="submit" name="submit" value="Submit"></input></td>
</tr>
</table>
</form>
</body>
</html> |
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发表于 2017-3-25 06:21:10
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