CodeIgniter調整圖像大小功能不起作用

Question

我在這段代碼中有問題。 這段代碼在我的本地Windows系統上運行。 但是相同的代碼無法在在線服務器上運行。 我有一個功能，可以根據參數將大圖像轉換為小尺寸圖像。 該功能的代碼如下。

public function do_resize($source_file, $target_folder, $height = 128, $width = 128){

    $filename = $source_file;
    $temp_data = explode('/',$filename);
    $new_filename = end($temp_data);

    $temp_data = explode('.', $new_filename);
    $ext = end($temp_data);
    $new_filename = $temp_data[0] . $width .'-'. $height .'.'. $ext;
    $source_path = $filename;


    $folder_path = '';
    $temp_folder = explode('/',$target_folder);

    foreach ($temp_folder as $folder) {
        $folder_path .=$folder . '/';
        if (!file_exists($folder_path)) {
            mkdir($folder_path);
        }
    }
    $target_path = $target_folder;

    if (file_exists($source_file)) //file_exists of a url returns false.It should be real file path
    {
        return $folder_path . $new_filename;
    }



    if(isset($config_manip)){
        unset($config_manip);
    }

    $config_manip = array(
        'image_library'     => 'gd2',
        'source_image'      => $source_path,
        'maintain_ratio'    => FALSE,
        'new_image'         => $target_path,
        'create_thumb'      => TRUE,
        'thumb_marker'      =>  $width . '-'. $height,
        'width'             => $width,
        'height'            => $height
    );

    $CI =& get_instance();

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

    $CI->image_lib->initialize($config_manip);
    if (!$CI->image_lib->resize()) {
        echo $CI->image_lib->display_errors();
        echo "<br>";
        echo $config_manip['source_image'];
    }
    // clear //
    $CI->image_lib->clear();
    return $folder_path . $new_filename;
}

我這樣稱呼這個功能。

$name = $this->imageresize->do_resize($brand['logo'], $target_folder, 50, 50);

然后，輸入參數$brand['logo']具有此值“ uploads / images / system / placeholder.png”，參數$target_folder具有此值“ uploads / images / cache / brands / brand-logo”。 我沒有從此代碼中得到任何錯誤。 但是它也沒有調整圖像的大小。 我還將目錄的權限設置為777。

任何人對此都有一些解決方案。 謝謝

Answer 1

更改：

if (file_exists($source_file)) //file_exists of a url returns false.It should be real file path
{
    return $folder_path . $new_filename;
}

上

if (file_exists($folder_path . $new_filename)) //file_exists of a url returns false.It should be real file path
{
    return $folder_path . $new_filename;
}

和$ config_manip：

'new_image'         => $target_path,

上

'new_image'         => $folder_path . $new_filename,

:)