php+js实现图片的上传、裁剪、预览、提交示例
jopen
10年前
<!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是你上传图片的宽高 height: Math.round(scaleY * 390) + 'px', marginLeft: '-' + Math.round(scaleX * selection.x1) + 'px', marginTop: '-' + Math.round(scaleY * selection.y1) + 'px' }); } //unity3d脚本http://www.unitymanual.com //这里通过jQuery语法在原来图片后插入预览的小图片 $(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',//缩放比例 selectionOpacity: 0.2 , onSelectEnd: preview //裁剪后执行的函数，在上面 }); //确认裁剪 $("#sliceButton").click(function() { var pic = $('#selectbanner').attr('src'); // alert(pic); var x,y,w,h; $.post( "cat.php", //（2）将附上这个页面的代码 { x:$('#selectbanner').data('x'), y:$('#selectbanner').data('y'), w:$('#selectbanner').data('w'), h:$('#selectbanner').data('h'), pic:pic }, function(data){ // alert(data); //把裁剪后图片加载到#sure if(data){ $('#sure').attr('src',data); } } ); }); }) </script> <title>图片裁剪、预览</title> </head> <body> <?php //上传图片后，把图片复制到upload文件夹下面 if($_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 "您只能上传以下类型文件: ",$text,"<br>"; }else{ $filename = explode(".",$photo); //把上传的文件名以"."好为准做一个数组。 $time = date("m-d-H-i-s"); //取当前上传的时间 $filename[0] = $time; //取文件名 $name = implode(".",$filename); //上传后的文件名 $uploadfile = $path.$name; $_SESSION['upfile'] = $uploadfile;//上传后的文件名地址 move_uploaded_file($tmp_addr,$uploadfile); } // echo $uploadfile; } ?> <div id="s"> <!--上传图片--> <form action="" method="post" enctype="multipart/form-data"> <input type="file" id="img" name="img" value="" onclick=""/> <input name="submit" id="submit" type="submit" value="提交" class="submit"/> </form> <!--显示图片--> <? if(isset($_SESSION['upfile'])){?> <img id="selectbanner" name="selectbanner" src="<? echo $_SESSION['upfile'];?>" title="mypic"/> <? }?> </div> <!--确认裁剪--> <div><input type="submit" id="sliceButton" name="sliceButton" value="sliceButton"></div> <!--显示裁剪后的图片--> < div><img id="sure" src="" style="cursor:hand" /></div> </body> </html>