Image processing library for PHP

<?php
use PHPImageWorkshop\ImageWorkshop as ImageWorkshop;
require_once(__DIR__.'/autoload.php');
class ImageWorkshopTest extends \PHPUnit_Framework_TestCase
{
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    const IMAGE_SAMPLE_PATH = '/Resources/images/sample1.jpg';
    const FONT_SAMPLE_PATH  = '/Resources/fonts/arial.ttf';
    const WEB_PATH          = 'http://localhost:8000';
    public function testInitFromPath()
    {
        // test 1
        
        $layer = ImageWorkshop::initFromPath(__DIR__.static::IMAGE_SAMPLE_PATH);
        
        $this->assertTrue(is_object($layer) === true, 'Expect $layer to be an object');
        $this->assertTrue(get_class($layer) === 'PHPImageWorkshop\Core\ImageWorkshopLayer', 'Expect $layer to be an ImageWorkshopLayer object');
        // test 2
        $layer = ImageWorkshop::initFromPath('file://'.__DIR__.static::IMAGE_SAMPLE_PATH);
        $this->assertTrue(is_object($layer) === true, 'Expect $layer to be an object');
        $this->assertTrue(get_class($layer) === 'PHPImageWorkshop\Core\ImageWorkshopLayer', 'Expect $layer to be an ImageWorkshopLayer object');
        // test 3
        if (version_compare(PHP_VERSION, '5.4', '>=')) {
            $layer = ImageWorkshop::initFromPath(static::WEB_PATH.'/sample1.jpg');
            $this->assertTrue(is_object($layer) === true, 'Expect $layer to be an object');
            $this->assertTrue(get_class($layer) === 'PHPImageWorkshop\Core\ImageWorkshopLayer', 'Expect $layer to be an ImageWorkshopLayer object');
        }

The advantages of this library.

The thumbnail speed is very fast and the quality is very high

Support smart cropping

Very good support for GIF images

5 thumbnail modes

Image comparison function

Advanced image filtering function

Image blending

The APIs supported by other image processing libraries are basically supported