PHP Prime : Doc : Helpers : Image

Image helper

To see some how the image helper can be used, look at the examples.

You can view the source on GitHub.

Load image

$image = new image('1.jpg');

$image->output_jpg();
$image->output_jpg(90);

$image->output_png();

$image->save_jpg('/path/to/file.jpg');
$image->save_jpg('/path/to/file.jpg', 90);

Combine images

$image_sub = new image('2.gif');

$image = new image('1.jpg');

$image->image_add($image_sub, [
        'width' => 100,
        'height' => 200,
    ]);

$image->output_gif();

exit();

Resize image

$image = new image('1.jpg'); // Presuming the size is 100x200

$config = [ // Scales this image to 500x1000
        'width' => 500,
    ];

$config = [ // Scales to the biggest dimension (in this case the width), then crops the rest of the other dimension.
        'width' => 500,
        'height' => 100,
    ];

$config = [ // Scaled to 200x400 (to satisfy min width), and would have cropped the image if the max height was 300.
        'width_min' => 200,
        'width_max' => 400,
        'height_min' => 100,
        'height_max' => 500,
    ];

$config = [ // Scaled to 200x300, but the picture changes to 150x300, with a black border left/right (no cropping).
        'width_min' => 200,
        'width_max' => 400,
        'height_min' => 100,
        'height_max' => 300,
        'background' => '000000',
    ];

$config = [ // Scaled to 200x300, but the picture stays at 100x200, with a black border.
        'width_min' => 200,
        'width_max' => 400,
        'height_min' => 100,
        'height_max' => 300,
        'background' => '000000',
        'scale' => false,
    ];

$image->resize($config);
$image->save_jpg('/path/to/file.jpg');

Two images, Resize, and Alpha

$bg = new image('background.png');
$bg->alpha_blend_set(true);

$fg = new image('example.png');
$fg->resize(['height' => $bg->height_get()]);
$fg->sharpen();

$bg->image_add($fg, [
        'left' => ($bg->width_get() - $fg->width_get()),
    ]);

$bg->output_png();