Question

我想在新上传的图片上添加水印。我正在使用CI。

public function watermark(){
        $this->load->library('image_lib');
        $config['source_image'] = 'uploads/gallery/d7315a9a3039541431ab8a41820b6f00.jpg';
        $config['wm_text'] = 'Copyright 2015';
        $config['wm_type']          = 'text';
        $config['wm_font_size']     = 16;
        $config['wm_font_color']    = 'ffffff';
        $config['wm_vrt_alignment'] = 'middle';
        $config['wm_hor_alignment'] = 'right';
        $config['wm_padding']       = '20';
        $this->image_lib->initialize($config);
        if (!$this->image_lib->watermark()) {
            echo $this->image_lib->display_errors();
        }else{
            echo "Image created";
        }
    }

它没有显示任何错误，但未创建图像。

Answer 1

来自documentation：

注意：为了允许图像类进行任何处理，图像文件必须有＆＃34;写＆＃34;文件权限。

例如，777。

Answer 2

试试这个

public function image_watermark()//change the class name
{
    $this->load->library('image_lib');

    $config['source_image'] = 'uploads/gallery/d7315a9a3039541431ab8a41820b6f00.jpg';
    $config['wm_text'] = 'Copyright 2015';
    $config['wm_type']          = 'text';
    $config['wm_font_size']     = 16;
    $config['wm_font_color']    = 'ffffff';
    $config['wm_vrt_alignment'] = 'middle';
    $config['wm_hor_alignment'] = 'right';
    $config['wm_padding']       = '5';//less padding

    $this->image_lib->initialize($config);

    if (!$this->image_lib->watermark()) {
        echo $this->image_lib->display_errors();
    }else{
        echo "Image created";
    }
}

在CI中添加水印

2 个答案: