生成缩略图，Image_lib.php报错A non well formed numeric value encountered
本帖最后由 melkor 于 2011-5-20 13:20 编辑看论坛上有一篇帖子是关于多个缩略图生成的，直接用了那段代码，修改了一些。
if (!$this->upload->do_upload('goods_image')) {// 图片上传失败
$data['error'] = $this->upload->display_errors('<span class="show_error">', '</span>');
$this->load->view('./manage/add_goods', $data);
} else {// 图片上传成功
$image_data = $this->upload->data();
if($image_data['is_image'] == 1) {
$configThumb = $this->aid->thumb_config('goods_images');
$configThumb['source_image'] = $image_data['full_path']; //文件路径带文件名
$this->image_lib->initialize($configThumb);
$this->image_lib->resize();
$configLarge = $this->aid->larger_config('goods_images');
$configLarge['source_image'] = $image_data['full_path']; //文件路径带文件名
$this->image_lib->initialize($configLarge);
$this->image_lib->resize();
}
$goods_info = array(
'goods_name' => $this->input->post('goods_name'),
'goods_user_id' => $this->user_id,
'goods_description' => $this->input->post('goods_description'),
'goods_category_id' => $this->input->post('goods_category'),
'goods_end_time' => $this->input->post('goods_end_time'),
'goods_quantity' => $this->input->post('goods_quantity'),
'goods_condition' => $this->input->post('goods_condition'),
'goods_price_max' => $goods_price_max,
'goods_price_min' => $goods_price_min,
'goods_place' => $this->input->post('goods_place'),
'goods_payment' => $this->input->post('goods_payment'),
'goods_image' => $image_data['file_name']
);
$this->Goods_query->insert_goods($goods_info);
}
运行的时候却报错了：
A PHP Error was encounteredSeverity: NoticeMessage: A non well formed numeric value encounteredFilename: libraries/Image_lib.phpLine Number: 514
A PHP Error was encounteredSeverity: NoticeMessage: A non well formed numeric value encounteredFilename: libraries/Image_lib.phpLine Number: 522
缩略图没有生成，为什么会这样呢？报错的部分看了下代码：
$dst_img = $create($this->width, $this->height);
$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);
这种错误搜了一下，大部分都是日期时间函数的输入有问题。但是这两行的输入怎么也会这样？难道是高度宽度的数字格式不对？大概都是××px这样……这个错误会有什么影响？怎么去除？
请仔细阅读手册 http://codeigniter.org.cn/user_guide/libraries/image_lib.html
你使用 resize() 但是并没有指定缩小的宽度和高度。
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