Generating a re-sizable QR code with logo in the middle which can be transparent and may change colors.

[sukith]

Dear codemasher,

Highly appreciate for creating this extensive library for us! I have faced the following issues with it. Below is my requirement.

I want to create a QR code that is dynamically able to

1. Change the QR image size in pixels
2. Able to have a logo in the middle - with some margin with the QR code without overlapping
3. Able to be transparent - without removing white space from the logo background
4. Able to change foreground and background colors when required.
5. Have a quiet space size of 2

When I tried some earlier tutorials from you and the community I could perform these tasks individually but couldn't create an all-in-one solution. I got issues in different versions and errors that I couldn't debug. Will you be able to quickly direct me toward generating this?

[codemasher]

Hi! The imageWithLogo example does pretty much all of this - the only thing you would need to do is to resize the final output to whatever size you need.

Change the QR image size in pixels

adjust the size of the output via QROptions:$scale

php-qrcode/examples/imageWithLogo.php

Line 84 in 02a2321

'scale' => 6,

Able to have a logo in the middle - with some margin with the QR code without overlapping

The example does exactly that over here:

php-qrcode/examples/imageWithLogo.php

Lines 50 to 52 in 02a2321

	// set new logo size, leave a border of 1 module (no proportional resize/centering)
	$lw = (($this->options->logoSpaceWidth - 2) * $this->options->scale);
	$lh = (($this->options->logoSpaceHeight - 2) * $this->options->scale);

Able to be transparent - without removing white space from the logo background

Set QROptions:$imageTransparent to true, add the options QROptions:$bgColor and QROptions:$transparencyColor and set the values for both of these to a color other than the white (e.g. [0, 255, 0]) - this color will be set to transparent via imagecolortransparent().

php-qrcode/examples/image.php

Lines 22 to 24 in 02a2321

	'bgColor' => [200, 150, 200],
	'imageTransparent' => true,
	# 'transparencyColor' => [233, 233, 233],

Able to change foreground and background colors when required.

See above and the simple image example.

Have a quiet space size of 2

Set QROptions:$quietzoneSize to 2.

Hope this helps!