mime_content_type

<?php         $this->assertSame(20, $info[1]);

        $this->assertSame(

            'image/jpeg',

            mime_content_type($jpg->getRealPath())

        );

    }

<?php         $this->assertSame(

            'image/gif',

            mime_content_type($image->getRealPath())

        );

    }

<?php         $this->assertSame(

            'image/webp',

            mime_content_type($image->getRealPath())

        );

    }

<?php         $imagePath = $image->getRealPath();



        if (version_compare(PHP_VERSION, '8.3.0-dev', '>=')) {

            $this->assertSame('image/bmp', mime_content_type($imagePath));

        } else {

            $this->assertSame('image/x-ms-bmp', mime_content_type($imagePath));

        }

<?php         if (version_compare(PHP_VERSION, '8.3.0-dev', '>=')) {

            $this->assertSame('image/bmp', mime_content_type($imagePath));

        } else {

            $this->assertSame('image/x-ms-bmp', mime_content_type($imagePath));

        }

    }