README

此库提供了一个类，允许您使用PHP的GD库轻松缩放图像。

安装

安装此库最简单的方法是使用composer。只需在项目根目录中运行此命令

composer require twowholeworms/image-resizer

使用方法

以下是使用缩放器的最简单用法

<?php

use TwoWholeWorms\Utilities\ImageResizer;

// Resize an image using the default settings (PNG, cover) to 300x200
$processedImage = ImageResizer::load('/path/to/image_file.png')->resize(300, 200);

您可以直接保存结果到文件，例如这样

<?php

use TwoWholeWorms\Utilities\ImageResizer;

// Resize an image using the default settings (PNG, cover) to 300x200 and save it to a file
$resizer = ImageResizer::load('/path/to/image_file.png')->save('/path/to/save/processed_image.png');

您可以从URL加载

<?php

use TwoWholeWorms\Utilities\ImageResizer;

$resizer = ImageResizer::load('http://url.to/image.png');

您可以在加载源图像时传递配置选项

<?php

use TwoWholeWorms\Utilities\ImageResizer;

// Create a new instance with specific settings
$resizer = ImageResizer::load('/path/to/image.gif', [
    'format' => IMAGETYPE_PNG,
    'mode' => ImageResizer::MODE_COVER,
    'width' => 300,
    'height' => 200,
]);

或者您可以单独设置每个选项

<?php

use TwoWholeWorms\Utilities\ImageResizer;

$resizer = ImageResizer::load('/path/to/image.gif');
$resizer->setFormat(IMAGETYPE_JPEG)
        ->setMode(ImageResizer::MODE_STRETCH)
        ->setWidth(150)
        ->setHeight(100);

如果您想直接从单个源图像保存多个图像尺寸，您可以这样做

<?php

use TwoWholeWorms\Utilities\ImageResizer;

$resizer = ImageResizer::load('/path/to/image')
$resizer->save($destFileLarge, ['width' => 1000, 'height' => 750]);
$resizer->save($destFileMedium, ['width' => 600, 'height' => 400]);
$resizer->save($destFileSmall, ['width' => 300, 'height' => 200]);
$resizer->save($destFileThumb, ['width' => 100, 'height' => 100]);