CI框架图片裁剪

在图片上传成功后，调用图片裁剪功能

 

1.加载CI类库以及配置文件

$this->load->library('image_lib');

$config_thumb                   = $this->config->item("image_thumb");

配置文件

//缩略图
$config['image_thumb']      = array(

    //gd2图库
    'image_library'         => 'gd2',
    //是否建立缩略图
    'create_thumb'          => true,
    'maintain_ratio'        => true,
);

程序中调用

$config_thumb['source_image']      = $this->upload->data('full_path');
$config_thumb['new_image']         = $thumbpath."/".$imgname;


$big_thumb      = thumbUploadImg($config_thumb,array(300,300,"_300_300",));
$this->image_lib->initialize($big_thumb);
$this->image_lib->resize();

  自定义图片裁剪封装

/***************
 * @function                自定义上传图片裁剪
 * @Param:
 *     $thumb :             项目配置中的基本参数，必须有
 *     $param               自定义配置，可选，一维索引数组
 *     $config :            默认配置中的基本参数，能够自定义覆盖
 * @Return:     $thumb;       图片裁剪配置
 ***************/
function thumbUploadImg($thumb,$param = array()){
    if (count($param) == 3){
        $config['width']             = $param[0];
        $config['height']            = $param[1];
        $config['thumb_marker']      = $param[2];
    }else{
        $config['width']             = 150;
        $config['height']            = 150;
        $config['thumb_marker']      ="_150_150";
    }
    $thumb                      = array_merge($thumb,$config);
    return $thumb;
}