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使用 for 循环创建缩略图

发布于 2024-08-04 23:01:18 字数 49 浏览 2 评论 0原文

如何在 Codeigniter 中使用 for 循环从解压缩的图像文件夹创建缩略图？

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慵挽 2024-08-11 23:01:18

没有
这会更好

config['image_library'] = 'gd2';
$config['maintain_ratio'] = TRUE;
$config['width'] = 100;
$config['height'] = 100;
$this->load->library('image_lib', $config);
foreach ($images AS $file) {
    $config['source_image'] = $file;
    $this->image_lib->initialize($config);
    $this->image_lib->resize();
}

nope
this would be better

config['image_library'] = 'gd2';
$config['maintain_ratio'] = TRUE;
$config['width'] = 100;
$config['height'] = 100;
$this->load->library('image_lib', $config);
foreach ($images AS $file) {
    $config['source_image'] = $file;
    $this->image_lib->initialize($config);
    $this->image_lib->resize();
}

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北风几吹夏 2024-08-11 23:01:18

加载目录助手：

$this->load->helper('directory');

映射目录：

$images = directory_map('./directoryRelativeToIndexDotPhp/');

现在您在 $images 中有一个文件数组，为 image_lib 类设置一个配置数组并循环遍历它们，调整图像大小：

$config['image_library'] = 'gd2';
$config['maintain_ratio'] = TRUE;
$config['width'] = 100;
$config['height'] = 100;
foreach ($images AS $file) {
    $config['source_image'] = $file;
    $this->load->library('image_lib', $config);
    $this->image_lib->resize();
}

尚未测试，但这应该给您一个良好的开始。您可能需要在调整大小之前检查文件是否实际上是图像。

查看有关图像处理库的文档 http://codeigniter.com/user_guide/libraries/image_lib .html

Load the directory helper:

$this->load->helper('directory');

Map the directory:

$images = directory_map('./directoryRelativeToIndexDotPhp/');

Now you an array of files in $images, set up a configure array for the image_lib class and loop through them, resizing the images:

$config['image_library'] = 'gd2';
$config['maintain_ratio'] = TRUE;
$config['width'] = 100;
$config['height'] = 100;
foreach ($images AS $file) {
    $config['source_image'] = $file;
    $this->load->library('image_lib', $config);
    $this->image_lib->resize();
}

Not tested but this should give you a good start. You will probably want to check if the files are actually images before resizing.

Check out the documentation on the image manipulation library http://codeigniter.com/user_guide/libraries/image_lib.html

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~没有更多了~