Detailed explanation of the steps for php to call the Google interface to generate a QR code

This time I will bring you a detailed explanation of the steps to generate a QR code by calling the google interface in php. , let’s take a look.Example, call the google interface to implement the QR code.

"; $chl = urlencode($logo); $png = "http://chart.googleapis.com/chart?chs=$size&cht=qr&chl=$chl&chld=L|1&choe=UTF-8"; $QR = imagecreatefrompng($png);//外面那QR图 //以下是二维码生成的主要代码 if ($logo !== FALSE) { $logo = imagecreatefromstring(file_get_contents($logo)); $QR_width = imagesx($QR); $QR_height = imagesy($QR); $logo_width = imagesx($logo); $logo_height = imagesy($logo); $logo_qr_width = $QR_width/5; $scale = $logo_width/$logo_qr_width; $logo_qr_height = $logo_height/$scale; $from_width = ($QR_width-$logo_qr_width)/2; imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); } header('Content-type: image/png'); imagepng($QR); //销毁二维码图像 imagedestroy($QR); ?>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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