 
<!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 content="text/html; charset=UTF-8" http-equiv="Content-Type"> 
<link rel="stylesheet" type="text/css" href="css/imgareaselect-default.css" /> 
<script type="text/javascript" src="scripts/jquery.min.js"></script> 
<script type="text/javascript" src="scripts/jquery.imgareaselect.pack.js"></script> 
<script type="text/javascript"> 
function preview(img, selection) { 
$('#selectbanner').data('x',selection.x1); 
$('#selectbanner').data('y',selection.y1); 
$('#selectbanner').data('w',selection.width); 
$('#selectbanner').data('h',selection.height); 

var scaleX = 100 / (selection.width || 1); 
var scaleY = 100 / (selection.height || 1); 
$('#ferret > img').css({ 
width: Math.round(scaleX * 512) + 'px',//512、390是你上傳圖片的寬高 
height: Math.round(scaleY * 390) + 'px', 
marginLeft: '-' + Math.round(scaleX * selection.x1) + 'px', 
marginTop: '-' + Math.round(scaleY * selection.y1) + 'px' 
}); 
} 

//這里通過jQuery語法在原來圖片后插入預(yù)覽的小圖片 
$(document).ready(function () { 
$('<div id="ferret"><img src="upload_pic/resized_pic.jpg" style="position: relative;" /><div>').css({ 
float: 'left', 
position: 'relative', 
overflow: 'hidden', 
width: '100px', 
height: '100px' 
}) 

.insertAfter($('#selectbanner')); 

$('#selectbanner').imgAreaSelect({ 
selectionColor: 'blue', x1:0, y1:0, x2: 100,//初始位置 
maxWidth:500,y2:100, 
aspectRatio: '1:1',//縮放比例 
selectionOpacity: 0.2 , 
onSelectEnd: preview //裁剪后執(zhí)行的函數(shù)，在上面 
}); 
//確認(rèn)裁剪 
$("#sliceButton").click(function() { 
var pic = $('#selectbanner').attr('src'); 
// alert(pic); 
var x,y,w,h; 
$.post( 
"cat.php", //（2）將附上這個頁面的代碼 
{ 
x:$('#selectbanner').data('x'), 
y:$('#selectbanner').data('y'), 
w:$('#selectbanner').data('w'), 
h:$('#selectbanner').data('h'), 
pic:pic 
}, 
function(data){ 
// alert(data); 
//把裁剪后圖片加載到#sure 
if(data){ 
$('#sure').attr('src',data); 
} 
} 
); 
}); 
}) 
</script> 
<title>圖片裁剪、預(yù)覽</title> 
</head> 
<body> 
<?php 
//上傳圖片后，把圖片復(fù)制到upload文件夾下面 
if($_POST){ 
$photo = $_FILES['img']['name']; 
$tmp_addr = $_FILES['img']['tmp_name']; 

$path = 'upload/'; 
$type=array("jpg","gif","jpeg","png"); 
$tool = substr(strrchr($photo,'.'),1); 
if(!in_array(strtolower($tool),$type)){ 
$text=implode('.',$type); 
echo "您只能上傳以下類型文件: ",$text,"<br>"; 
}else{ 
$filename = explode(".",$photo); //把上傳的文件名以"."好為準(zhǔn)做一個數(shù)組。 
$time = date("m-d-H-i-s"); //取當(dāng)前上傳的時間 
$filename[0] = $time; //取文件名 
$name = implode(".",$filename); //上傳后的文件名 
$uploadfile = $path.$name; 
$_SESSION['upfile'] = $uploadfile;//上傳后的文件名地址 
move_uploaded_file($tmp_addr,$uploadfile); 
} 
// echo $uploadfile; 
} 
?> 
<div id="s"> 
<!--上傳圖片--> 
<form action="" method="post" enctype="multipart/form-data"> 
<input type="file" id="img" name="img" value="" onclick=""/> 
<input name="submit" id="submit" type="submit" value="提交" class="submit"/> 
</form> 
<!--顯示圖片--> 
<? if(isset($_SESSION['upfile'])){?> 
<img id="selectbanner" name="selectbanner" src="<? echo $_SESSION['upfile'];?>" title="mypic"/> 
<? }?> 
</div> 
<!--確認(rèn)裁剪--> 
<div><input type="submit" id="sliceButton" name="sliceButton" value="sliceButton"></div> 
<!--顯示裁剪后的圖片--> 
< div><img id="sure" src="" style="cursor:hand" /></div> 
</body> 
</html> 