我正在努力使用我的CodeIgniter脚本来为用户上传,调整大小和裁剪个人资料图片。最后,我想上传带有加密名称的图像,调整大小并保存两次(一次作为缩略图,一次作为中等大小的图像),然后删除原始文件。但是,我想我真的错过了一些东西,因为我无法让第一个上传调整大小的过程发挥作用。我在代码中的某个地方肯定有错误(跟随代码的错误),但我认为我对逻辑的理解可能存在差距。谁知道?任何反馈都非常感谢。
public function image() {
$config['upload_path'] = './temp_images/'; // This directory has 777 access
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '2048';
$config['max_width'] = '0'; // For unlimited width
$config['max_height'] = '0'; // For unlimited height
$config['encrypt_name'] = TRUE;
$config['remove_spaces'] = TRUE;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
$data['error'] = array('error' => $this->upload->display_errors());
$this->load->view('upload', $data);
}
else
{
$image_data_array = array('upload_data' => $this->upload->data());
foreach ($image_data_array as $image_data){
$raw_name = $image_data['raw_name'];
$file_ext = $image_data['file_ext'];
}
$file_name = $raw_name . $file_ext;
$image_path = 'temp_images/' . $file_name;
$new_path = 'image/profile/'; // This directory has 777 access
$config['image_library'] = 'gd';
$config['source_image'] = $image_path;
$config['new_image'] = $new_path;
$config['maintain_ratio'] = FALSE;
$config['width'] = 140;
$config['height'] = 140;
$config['quality'] = '80%';
$new_name = $new_path . $raw_name . $file_ext;
$this->load->library('image_lib', $config);
// The following is just to test that it worked:
if ( ! $this->image_lib->resize()) {
echo $this->image_lib->display_errors();
echo 'source: ' . $config['source_image'] . '<br />';
echo 'new: ' . $config['new_image'] . '<br />';
}
else {
echo "<img src='" . base_url() . $new_name . "' />";
}
$this->image_lib->clear();
}
}
上传过程正常。当我刚刚调用$this->image_lib->resize()
时,即使调整大小也有效。当我尝试错误捕捉时,它开始对我大吼大叫。我双重验证了temp_images和image / profile都有777个权限(如前所述,上传和调整大小实际上在一个点上工作)。这是产生的错误:
Unable to save the image. Please make sure the image and file directory are writable.
source: temp_images/8ee1bab383cf941f34218f7535d5c078.jpg
new: image/profile/
答案 0 :(得分:1)
之前从未真正使用过CI,也无法查看代码的详细信息。
答案 1 :(得分:1)
我试过这个tutorial
它适用于图像上传并为调整大小图像创建拇指文件夹...
答案 2 :(得分:0)
请同时包含文件名来更新new_image值。
$config['new_image'] = 'image/profile/' . $filename;