求php后台代码 保存图片文件

// 扩展API加载完毕后调用onPlusReady回调函数   
        document.addEventListener( "plusready", onPlusReady, false );  
        // 扩展API加载完毕，现在可以正常调用扩展API   
        function onPlusReady()   
        {  
            console.log("plusready");  
        }  
        // 拍照  
        function captureImage()  
        {  
            var cmr = plus.camera.getCamera();  
            var res = cmr.supportedImageResolutions[0];  
            var fmt = cmr.supportedImageFormats[0];  
            console.log("Resolution: "+res+", Format: "+fmt);  

            cmr.captureImage( function( path ){  
                    //alert( "Capture image success: " + path );    

                        var task = plus.uploader.createUpload( "http://192.168.1.8:8080", { method:"POST",blocksize:0,priority:100}, function ( t, status ) {  
                            // 上传完成  
                            if ( status == 200 ) {  
                                alert( "Upload success: " + t.url );  
                            } else {  
                                alert( "Upload failed: " + status );  
                            }  
                        });  
                        task.addFile( path, {key:"testdoc"} );  
                        //task.addEventListener( "statechanged", onStateChanged, false );  
                        task.start();  
                },  
                function( error ) {  
                    alert( "Capture image failed: " + error.message );  
                },  
                {resolution:res,format:fmt}  
            );  
        }