3

我正在做一个社交网络项目,我可以选择添加/编辑照片,当用户单击按钮时,图像将被上传到数据库并更新......是否可以在图像出现之前裁剪图像保存到数据库中。

4

3 回答 3

4

只需调用这个函数..with param source,destination and size 你想要什么:)

function cropImage($source,$dest,$whsize) {

                $size = getimagesize($source);
                $w = $size[0];
                $h = $size[1];
                $xratio=$w/$whsize;
                $yratio=$h/$whsize;

                if($xratio > $yratio)$multiplier=$xratio;
                else $multiplier=$yratio;

                $nw=$w/$multiplier;
                $nh=$h/$multiplier;
                switch($size[2]) {
                    case '1':
                    $simg = imagecreatefromgif($source);
                    break;
                    case '2':
                    $simg = imagecreatefromjpeg($source);
                    break;
                    case '3':
                    $simg = imagecreatefrompng($source);
                    break;
                }

                $dimg = imagecreatetruecolor($nw, $nh);

                $wm = $w/$nw;
                $hm = $h/$nh;

                $h_height = $nh/2;
                $w_height = $nw/2;

                if($w> $h) {

                    $adjusted_width = $w / $hm;
                    $half_width = $adjusted_width / 2;
                    $int_width = $half_width - $w_height;

                    imagecopyresampled($dimg,$simg,-$int_width,0,0,0,$adjusted_width,$nh,$w,$h);

                } elseif(($w <$h) || ($w == $h)) {

                    $adjusted_height = $h / $wm;
                    $half_height = $adjusted_height / 2;
                    $int_height = $half_height - $h_height;

                    imagecopyresampled($dimg,$simg,0,-$int_height,0,0,$nw,$adjusted_height,$w,$h);

                } else {
                    imagecopyresampled($dimg,$simg,0,0,0,0,$nw,$nh,$w,$h);
                }
             $dest=$dest.'jpeg';
                imagejpeg($dimg,$dest,100);
        }       
于 2010-07-16T10:48:17.750 回答
3

在客户端,我推荐JCrop

于 2010-07-16T10:41:28.793 回答
1

当然,将文件从上传目录移到某个临时目录中,将该位置存储在他们的会话中,然后将其显示给他们并让他们在将其移动到生产区域并将其插入数据库之前对其进行裁剪。

于 2010-07-16T10:39:09.927 回答