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Change size of qrcode.Default size is 150x150px now we set it to 250px

Chenge margin of qr code.Default is 4 . You can us : 0,1,2,3,4. Now we create qr code with 0 margin

Change text codding type. Default is UTF-8 (0). Property accept 0 -UTF-8 , 1-Shift_JIS, 2-ISO-8859-1. Creation qrcode with ISO-8859-1 codding

If you want class return clean text link or html image tag. Default return html image tag . Now we want text link. Property accept 0-text,1-image,s,000000|bg,s,FFFFFF&chs=150x150&chld=M|4&cht=qr&chl=&choe=UTF-8
Change background, Default background is white (#FFFFFF).To change it use Hexadecimal color notation without #.Now we chenge background to green (#007F0E)

Change error Correction Level. Default is M. Property accept: S,L,M,Q,H. We change it to H level

Change Transparency Level
Past to property value accept : 0,20,40,60,80,100
Now we chenge transparency of img to 60%