PHP生成圆角二维码logo

function cornerimg($filename, $cornerimg, $logoimg, $centerbigger=5){ ???//获取二维码 ???$qrcode = file_get_contents($filename); ???$qrcode = imagecreatefromstring($qrcode); ???$qrcode_width = imagesx($qrcode); ???$qrcode_height = imagesy($qrcode);//圆角图片 ???$corner = file_get_contents($cornerimg); ???$corner = imagecreatefromstring($corner); ???$corner_width = imagesx($corner); ???$corner_height = imagesy($corner);//计算圆角图片的宽高及相对于二维码的摆放位置,将圆角图片拷贝到二维码中央 ???$corner_qr_height = $corner_qr_width = $qrcode_width/$centerbigger; ???$from_width = ($qrcode_width-$corner_qr_width)/2; ???imagecopyresampled($qrcode, $corner, $from_width, $from_width, 0, 0, $corner_qr_width, $corner_qr_height, $corner_width, $corner_height);//logo图片 ???$logo = file_get_contents($logoimg); ???$logo = imagecreatefromstring($logo); ???$logo_width = imagesx($logo); ???$logo_height = imagesy($logo);//计算logo图片的宽高及相对于二维码的摆放位置,将logo拷贝到二维码中央 ???$logo_qr_height = $logo_qr_width = $qrcode_width/$centerbigger - 6; ???$from_width = ($qrcode_width-$logo_qr_width)/2; ???imagecopyresampled($qrcode, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); ???header(‘Content-type: image/png‘); ???imagepng($qrcode); ???imagedestroy($qrcode); ???imagedestroy($corner); ???imagedestroy($logo);}