所属分类:PHP实例-文件操作,常用实例教程
HTML
<input type="text" class="input" id="txt" value="http://www.sucainiu.com" /> <label for="logo"> <input type="checkbox" name="logo" id="haslogo" /> 带LOGO </label> <input type="button" id="sub_btn" class="btn" value="提交" />
jQuery
$(function() { $("#sub_btn").click(function() { var txt = $("#txt").val(); var haslogo = $("#haslogo").attr("checked"); var logo = haslogo ? 1 : 0; if (txt.length < 1 || txt.length > 200) { alert("请输入内容!"); return false; } $.post("ajax.php", { mytxt: encodeURIComponent(txt), mylogo: logo }, function(msg) { $("#code").html(msg); }); }); });
PHP
include 'phpqrcode.php'; $value = isset($_POST['mytxt']) ? $_POST['mytxt'] : ""; //二维码内容 $errorCorrectionLevel = 'L'; //容错级别 $matrixPointSize = 6; //生成图片大小 $mylogo = isset($_POST['mylogo']) ? $_POST['mylogo'] : ""; //生成二维码图片 QRcode::png($value, 'qrcode.png', $errorCorrectionLevel, $matrixPointSize, 2); $logo = 'logo.png'; //准备好的logo图片 $QR = 'qrcode.png'; //已经生成的原始二维码图 $logo_rs = "../../../../modals/temp/".time().".png";//文件存放路径 if ($mylogo == 1) { //带有logo $QR = imagecreatefromstring(file_get_contents($QR)); $logo = imagecreatefromstring(file_get_contents($logo)); $QR_width = imagesx($QR); //二维码图片宽度 $QR_height = imagesy($QR); //二维码图片高度 $logo_width = imagesx($logo); //logo图片宽度 $logo_height = imagesy($logo); //logo图片高度 $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, $logo_height); //输出图片 imagepng($QR, $logo_rs); //重新组合图片并调整大小 } else { //不带logo QRcode::png($value, $logo_rs, $errorCorrectionLevel, $matrixPointSize, 2); } echo '<img src='.$logo_rs.'>';