require ('conn.php');
require ('functions.php');
// 指定允许其他域名访问
header ( 'Access-Control-Allow-Origin:*' );
include './phpqrcode/phpqrcode.php';
$date = date ( 'YmdHis', time () );
$uid = $_POST ['uid'];
// $value = 'http://' . $_SERVER ['HTTP_HOST'] . $_SERVER ['REQUEST_URI']; // 二维码内容
$domain = $mysql->query ( "select name from bat_shoutu_domain where status = 1" );
$value = "http://www.".$domain[0]['name']."/reg.php?uid=" . $uid;
$errorCorrectionLevel = 'L'; // 容错级别
$matrixPointSize = 4.55; // 生成图片大小
// 生成二维码图片
$QRCodeImg = "./static/QRCode/qrcode_1_$date.png"; // 已经生成的原始二维码图
QRcode::png ( $value, $QRCodeImg, $errorCorrectionLevel, $matrixPointSize, 2 );

$src_im = imagecreatefrompng ( $QRCodeImg );
$dst_im = imagecreatefromjpeg ( './static/index/hb.jpg' );
imagecopy ( $dst_im, $src_im, 220, 255, 0, 0, 150, 150 );

$dstImg = "./static/QRCode/qrcode_2_$date.png";
imagepng ( $dst_im, $dstImg );

$returnRst ["src"] = "qrcode_2_$date.png";
echo json_encode ( $returnRst );



qq_34074228 回复qq_34074228: QR.php最后一行用的josn,所以我在txlist.php中这样写的img标签,<img src="<?php echo json_encode($returnRst['src']) ; ?>打印不出东西,而且引用QR.php的时候显示空白页,我在txlist.php中是这样引用的,require ('../QR.php');
接近 4 年之前 回复
qq_34074228 回复qq_34074228: 能说明白一点吗?怎么样链接呀?
接近 4 年之前 回复
qq_34074228 这样么?<img src="./QR.php/value:image/png"/>
接近 4 年之前 回复


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php 用pgpqrcode生成的二维码如何实现 通过扫描二维码登录

php 用pgpqrcode生成的二维码如何实现 通过扫描二维码登录!用的TP3,2 求大神

调用微信接口 生成一个二维码

调用微信接口 生成一个二维码 ,返回图片是全黑的 为什么??????????


<div class="post-text" itemprop="text"> <p>I made a PHP script that takes severall URLs from a database and outputs QrCodes using the phpQrCode Library.</p> <p>Qr codes are output in an eps file and printed on handouts by our printing services.</p> <p>This much is working fine, but some of the QR codes when read on my phone take me to the page directly, but some only give methe URL of the page as a string.</p> </div>


<div class="post-text" itemprop="text"> <p>Hello so basically I have this working code that generates a qr code image.</p> <pre><code>&lt;?php if (isset($_POST['btn_submit'])) { include('phpqrcode/qrlib.php'); require '../db/dbc.php'; try { $characters = 'abcdefghijklmnopqrstuvwxyz0123456789'; $strlength = 5; $string = ''; for ($i = 0; $i &lt; $strlength; $i++) { $string .= $characters[rand(0, strlen($characters) - 1)]; } $query = "INSERT INTO tbl_residents (fname, mname, lname, address, uname, pword, acct_status, department, contact_no, date_reg) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"; $stmt = $dbc-&gt;prepare($query); $pword = sha1($string); $now = date('m/d/Y'); $acct_status = "active"; $stmt-&gt;bindParam(1, $_POST['txt_fn']); $stmt-&gt;bindParam(2, $_POST['txt_mn']); $stmt-&gt;bindParam(3, $_POST['txt_ln']); $stmt-&gt;bindParam(4, $_POST['txt_address']); $stmt-&gt;bindParam(5, $_POST['txt_un']); $stmt-&gt;bindParam(6, $pword); $stmt-&gt;bindParam(7, $acct_status); $stmt-&gt;bindParam(8, $_POST['txt_dept']); $stmt-&gt;bindParam(9, $_POST['txt_cnum']); $stmt-&gt;bindParam(10, $now); $stmt-&gt;execute(); } catch (PDOException $e) { echo "Error: " . $e-&gt;getMessage(); } } $uncode = intval($string, 36); // outputs image directly into browser, as PNG stream QRcode::png("login-link.php?code=$uncode"); ?&gt; </code></pre> <p>If I wanted to add details such as name, department and contact number under the php closing tag, it won't show up. But the code still runs and still generates a qr code image.</p> <p>Below the php end tag I added this but it doesn't work.</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html lang="en"&gt; &lt;head&gt; &lt;meta charset="UTF-8"&gt; &lt;title&gt;ID Creation&lt;/title&gt; &lt;/head&gt; &lt;body&gt; Name: &lt;?= $_POST['txt_fn']. " " . $_POST['txt_mn'] . " " . $_POST['txt_fn']; ?&gt; &lt;br /&gt; Department: &lt;?= $_POST['txt_dept']; ?&gt; &lt;br /&gt; Contact No.: &lt;?= $_POST['txt_cnum']; ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>If you remove the qr code generation line below, it works.</p> <pre><code>$uncode = intval($string, 36); // outputs image directly into browser, as PNG stream QRcode::png("login-link.php?code=$uncode"); </code></pre> <p>So basically, the line QRcode::png("login-link.php?code=$uncode"); stops the code from executing. It doesn't read any lines below it. Any thoughts? Thank you</p> </div>

用于Google API的服务器端QR码生成器替代方案?

<div class="post-text" itemprop="text"> <p>Is there a simple way to set up a PHP script to accept text using GET and return a QR_CODE? So the image will be accessed like <code>&lt;img src="script.php?text="ABCDEFG" /&gt;</code></p> <p><a href="" rel="nofollow">The library at didn't work for me</a>, and Google's API isn't a long-term solution.</p> </div>


<div class="post-text" itemprop="text"> <p>I created a sql database on my localhost machine later on i'd like to connect it to an online sql server for now i'd like to read the qr code using php code:</p> <pre><code>&lt;?php mysql_connect(“localhost“,”root“,”root“) or die(mysql_error()); mysql_select_db(“omi“) or die(mysql_error()); $data = mysql_query(“insert into $_GET[table] values ($_GET[id])”) or die(mysql_error()); ?&gt; </code></pre> <p>which must take the input via a url,id=1234 but there is an error saying parsing error on line 4, for reading via QRcode i will insert the server address in the QRcode along with the php values and read it via a barcode reader and push the code to insertion. how do i get the code working ?? </p> </div>

生成后如何将QR码图像保存到服务器文件夹? - PHP

<div class="post-text" itemprop="text"> <p>I am trying to generate QR code for each users who signup for my website. I am going to send them QR code in email and they can use that QR code for sign-in. Doing some research work, I found <a href="" rel="nofollow noreferrer" title="PHP QR code Library">phpqrcode</a>. I tried the following code of lines, which is saving the name of the QR code image in the DB, but is not saving its image to the folder. How can I save the QR image into any folder(say for example: Uploads). SO once image is uploaded into the folder, I can easily send that image to the user.</p> <p>So on submitting the register form, the following controller will be called and will save user as well as generate unique QR code for that user.</p> <p><strong>signupController.php</strong></p> <pre><code>$user = \Model\User::loadFromPost(); if($user-&gt;save()){ $tempDir = $_SERVER['SERVER_NAME'].UPLOAD_PATH . 'qrcodes/'; $codeContents = $user-&gt;email; $fileName = $user-&gt;id.md5($codeContents).'.png'; $pngAbsoluteFilePath = $tempDir.$fileName; if (!file_exists($pngAbsoluteFilePath)) { QRcode::png($codeContents, $pngAbsoluteFilePath); $user-&gt;qrcode = $fileName; $user-&gt;save(); } else { echo 'File already generated! We can use this cached file to speed up site on common codes!'; echo '&lt;hr /&gt;'; } } </code></pre> <p>Here <code>$_SERVER['SERVER_NAME']</code> is <code>example.local/</code> (for Local) and <code></code> (for live server) and <code>UPLOAD_PATH</code> is <code>contents/images/uploads</code>. The above code, saves the name of QR code image file in DB but not saving the image of QR into the uploads folder.</p> <p>Help is appreciated. Thanks.</p> </div>


<div class="post-text" itemprop="text"> <p>I am using PHP qrcode plugin to generate qr-code. It is working fine if I generate single but problem is when I try to generate multiple qr-code on single webpage then it is showing only one qr-code. </p> <p>I am directly displaying qr-code on webpage, I am not creating PNG/SVG file.</p> <p>Here is the code show far.</p> <pre><code>include('qrlib.php'); include('config.php'); $codeContents = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Proin nibh augue, suscipit a'; // generating QRcode::png($codeContents, QR_ECLEVEL_L); QRcode::png($codeContents, QR_ECLEVEL_M); QRcode::png($codeContents, QR_ECLEVEL_Q); QRcode::png($codeContents, QR_ECLEVEL_H); </code></pre> <p><strong>Note:</strong> I have downloaded the plugin from <a href="" rel="nofollow noreferrer"></a></p> </div>


<div class="post-text" itemprop="text"> <p>I am using this library to generate <a href="" rel="nofollow"></a> QR codes.</p> <p>I am trying to display two barcodes on the same page using following linesl</p> <pre><code> QRcode::png('My Name'); QRcode::png($codeText); </code></pre> <p>My questions:</p> <ul> <li>Only one barcode is shown which is second one. No any error messages shown.</li> <li>Is it possible and normal to display the text under the QR code like I have seen in barcodes in case of it is not read by a reader for some reason, so the user still can read the text below the QR code?</li> </ul> <p>Full code;</p> <pre><code>include('phpqrcode/qrlib.php'); //output image directly into browser, as PNG stream QRcode::png('My Name'); //****************************************************************************************** $param = $_GET['id']; //make sure script does not output anything!!! Otherwise it will break up PNG binary ob_start("callback"); $codeText = 'New Fashion Shop '. $param; $debugLog = ob_get_contents(); ob_end_clean(); QRcode::png($codeText); //****************************************************************************************** </code></pre> </div>


<div class="post-text" itemprop="text"> <p>i an trying to get the result(image) from url but there is some thing error in the code my code is:</p> <pre><code>&lt;?php if(isset($_POST['submit'])) { $url= $_POST['url']; $qrurl= ' cht=qr&amp;chl='.$url.'&amp;chs=180x180&amp;choe=UTF-8&amp;chld=L|0'; $result = file_get_contents("$qrurl"); echo $result; } else { echo"&lt;form method='post' action='index.php' &gt; &lt;input name='url' class='material' placeholder='Enter url...' type='url'autofocus/&gt;&lt;/br&gt;&lt;br&gt; &lt;input name='submit' id='submit' type='submit' value='submit'/&gt;&lt;/br&gt;&lt;br&gt; &lt;/form&gt; "; } ?&gt; </code></pre> <p>the above code displays nothing but when i open the url in browser it displays qr code.</p> </div>

Linux Ubuntu中的PHP QR Code类错误

<div class="post-text" itemprop="text"> <p>PHP QR Code gives the following error when executing even the most basic QR Code generation example.</p> <blockquote> <p>"Fatal error: Class 'QRcode' not found".</p> </blockquote> <p>I have copied the entire PHP QR Code folder to the my <code>var/www</code> directory but still no solution.</p> <p>Sample</p> <pre><code> &lt;?php include('phpqrcode/qrlib.php'); QRcode::png('PHP QR Code :)'); ?&gt; </code></pre> </div>

将ASCII选项卡编码为PHP的QR条形码,以便MS Excel可以读取它

<div class="post-text" itemprop="text"> <p>I have been using PHP QR Code (<a href="" rel="nofollow"></a>) to create QR barcodes. Each barcode contains several different pieces of information that I concatenate into a single string. The reason I am doing this is because the label I have to print on is too small to make separate barcodes for each piece of information. </p> <pre><code>$PartNumber = '12345'; $UIN = 'ABCD'; $IMEI = 00001; $WHSE = 'AAA'; $Barcode = $PartNumber.$UIN.$IMEI.$WHSE; QRcode::png($Barcode, 'Barcode.png'); </code></pre> <p>This part works perfectly fine. I print the barcode and then scan it into Excel and I get a string that reads '12345ABCD00001AAA'. What I want to be able to do is put the ASCII code for the Tab button in between each variable so that when I scan the barcode into Excel, each variable will be in a different column.</p> <pre><code>$PartNumber = '12345'; $UIN = 'ABCD'; $IMEI = 00001; $WHSE = 'AAA'; $Barcode = $PartNumber.'\09'.$UIN.'\09'.$IMEI.'\09'.$WHSE; QRcode::png($Barcode, 'Barcode.png'); </code></pre> <p>So the result would be Cell A1 = '12345', B1 = 'ABCD', C1 = '00001', D1 = 'AAA'.</p> <p>However, when I scan the barcode into Excel the whole string is placed in cell A1. I can hear Excel dinging as if it doesn't like the ASCII value and then seems to ignore it. I would prefer not to have to use code in Excel to separate the string based on a delimiter that I add. </p> <p>Does anyone know how I can get each variable into it's own column, or if it's even possible to do? </p> </div>

PHP:imagePNG()不会将文件保存到目录。 文件权限全部正确,仍然无法正常工作

<div class="post-text" itemprop="text"> <p>I am writing a program that watermarks user uploaded photos. After completing the layering, imagePNG() outputs the photo to the browser but wont save it to a directory. The paths are all correct and file permissions altered to 0755. Using only the first parameter of the function ( imagePNG($image) ) the image outputs, however when the path is added ( imagePNG($image, "photo_uploads/" . $album_name . "/") ). </p> <p>Code:</p> <pre><code> &lt;?php session_start(); use PHPImageWorkshop\ImageWorkshop; $album_length = $_SESSION['album_length']; $extension_array = $_SESSION['extension_array']; $album_name = $_SESSION['album_name']; chmod("photo_uploads/" . $album_name . "/", 0777); for($i = 0; $i &lt; $album_length; $i++) { $path = 'photo_uploads/' . $album_name . '/' . $i . $extension_array[$i]; // Load the stamp and the photo to apply the watermark to $stamp = imagecreatefrompng('watermark.png'); //only works with png $im = imagecreatefrompng($path); // Set the margins for the stamp and get the height/width of the stamp image $marge_right = 10; $marge_bottom = 10; $sx = imagesx($stamp); $sy = imagesy($stamp); // Copy the stamp image onto our photo using the margin offsets and the photo // width to calculate positioning of the stamp. imagecopy($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp)); // Output and free memory header('Content-type: image/png'); $save = "photo_uploads/" . $album_name . "/"; imagePNG($im, $save); imagedestroy($im); } ?&gt; </code></pre> <p>I have tried all of the solutions for other similar question. The function continues to output the modified image unless a path to save to is added as a second parameter.</p> </div>


<div class="post-text" itemprop="text"> <p>I have a php script that generates a <a href="" rel="nofollow">QR Code</a>. This code will be read from a PhoneGap app in JavaScript. This works fine so far but I would like to secure the QR Code so none else can generate other valid codes.</p> <p>My first thought was to add a hash of the data in the QR Code. but common hash functions are not very secure. For good hash functions I did not find a implementation for JavaScript. Second thought was to use public/private key encryption but here again is JavaScript a problem.</p> <p>Another huge problem is that the QR Code should be simple. A long encryption will make the small QR Code unreadable.</p> <p>What would be a good approach to secure a QR Code?</p> </div>


<div class="post-text" itemprop="text"> <p>I have this PHP code that creates a QR code with the given data: </p> <pre><code>&lt;?php include(JPATH_LIBRARIES . '/phpqrcode/qrlib.php'); $tempDir = JPATH_SITE . '/images/'; $codeContents = 'This Goes From File'; $fileName = 'qr_'.md5($codeContents).'.png'; $pngAbsoluteFilePath = $tempDir.$fileName; $urlRelativeFilePath = JUri::root() .'images/' . $fileName; if (!file_exists($pngAbsoluteFilePath)) { QRcode::png($codeContents, $pngAbsoluteFilePath); } else { echo "Not working!"; } echo '&lt;img src="'.$urlRelativeFilePath.'" /&gt;'; ?&gt; </code></pre> <p>What we need is to connect to a MySQL table (#__rsforms_submissions), retrieve some fields (for example, Name and Mail, Phone) and insert them in the QR code instead of the data provided by the example. To do so I would retrieve the logged in user's user</p> <pre><code>$user = JFactory::getUser(); $username = JUserHelper::getUsername($user-&gt;id); </code></pre> <p>Then, the MySQL query would look something like</p> <pre><code>SELECT Name,Mail, Phone FROM #__rsforms_submissions WHERE Username = $username </code></pre> <p>However, what's next? How do I insert these values into the PHP code? Thanks!</p> <p>Dani</p> </div>


<div class="post-text" itemprop="text"> <p>I have this code which outputs a QR code:</p> <pre><code>&lt;?php include(JPATH_LIBRARIES . '/phpqrcode/qrlib.php'); $db = JFactory::getDbo(); $user = JFactory::getUser(); $query = $db-&gt;getQuery(true); $query-&gt;select($db-&gt;quoteName(array('Soci', 'Nom', 'Cognoms', 'eCorreu'))) -&gt;from($db-&gt;quoteName('#__rsform_socis')) -&gt;where($db-&gt;quoteName('username') . ' = '. $db-&gt;quote($user-&gt;username)); $db-&gt;setQuery($query); $codeContents = $db-&gt;loadObjectList(); $data .= "Soci Nº: {$codeContents[0]-&gt;Soci} "; $data .= "Nom: {$codeContents[0]-&gt;Nom} "; $data .= "{$codeContents[0]-&gt;Cognoms} "; $data .= "e-correu: {$codeContents[0]-&gt;eCorreu}"; $tempDir = JPATH_SITE . '/images/'; $fileName = 'qr_'.md5($data).'.png'; $pngAbsoluteFilePath = $tempDir.$fileName; $urlRelativeFilePath = JUri::root() .'images/' . $fileName; if (!file_exists($pngAbsoluteFilePath)) { QRcode::png($data, $pngAbsoluteFilePath); } echo '&lt;img src="'.$urlRelativeFilePath.'" /&gt;'; ?&gt; </code></pre> <p>How can I add a download button so the user can download the code to the computer? Thanks,</p> <p>Dani</p> </div>

技术大佬:我去,你写的 switch 语句也太老土了吧

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