QR Code<\/b> is a machine-readable code that consists of black squares on a white background. QR code typically used for storing information which readable by the camera. Sometimes you required to generating dynamic QR code for products, members, or other items in your application. You’ll find many QR code generator libraries to create QR code. But Google Chart API provides a simple way to generate QR code in PHP<\/b> without any libraries or plugin.<\/p>\n
In this tutorial, we’ll show how you can generate QR code with PHP using Google Chart API and cURL<\/b>. Our PHP QR code generator script allows you to generate dynamic QR code for URL, text, email, phone, SMS, contact details, and other content.<\/p>\n
We’ve created PHP QR code generator class called QR_BarCode<\/code>, that helps to generate QR code image (PNG) or save QR code image as PNG file.<\/p>\n<?php
<\/span>\/**
* QR_BarCode - Barcode QR Code Image Generator
* @author CodexWorld
* @url http:\/\/www.codexworld.com
* @license http:\/\/www.codexworld.com\/license\/
*\/
<\/span>class <\/span>QR_BarCode<\/span>{
<\/span>\/\/ Google Chart API URL
<\/span>private <\/span>$googleChartAPI <\/span>= <\/span>'http:\/\/chart.apis.google.com\/chart'<\/span>;
<\/span>\/\/ Code data
<\/span>private <\/span>$codeData<\/span>;
<\/span>\/**
* URL QR code
* @param string $url
*\/
<\/span>public function <\/span>url<\/span>(<\/span>$url <\/span>= <\/span>null<\/span>){
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>preg_match<\/span>(<\/span>\"#^https?\\:\\\/\\\/#\"<\/span>, <\/span>$url<\/span>) ? <\/span>$url <\/span>: <\/span>\"http:\/\/<\/span>{<\/span>$url<\/span>}<\/span>\"<\/span>;
}
<\/span>\/**
* Text QR code
* @param string $text
*\/
<\/span>public function <\/span>text<\/span>(<\/span>$text<\/span>){
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>$text<\/span>;
}
<\/span>\/**
* Email address QR code
*
* @param string $email
* @param string $subject
* @param string $message
*\/
<\/span>public function <\/span>email<\/span>(<\/span>$email <\/span>= <\/span>null<\/span>, <\/span>$subject <\/span>= <\/span>null<\/span>, <\/span>$message <\/span>= <\/span>null<\/span>) {
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>\"MATMSG:TO:<\/span>{<\/span>$email<\/span>}<\/span>;SUB:<\/span>{<\/span>$subject<\/span>}<\/span>;BODY:<\/span>{<\/span>$message<\/span>}<\/span>;;\"<\/span>;
}
<\/span>\/**
* Phone QR code
* @param string $phone
*\/
<\/span>public function <\/span>phone<\/span>(<\/span>$phone<\/span>){
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>\"TEL:<\/span>{<\/span>$phone<\/span>}<\/span>\"<\/span>;
}
<\/span>\/**
* SMS QR code
*
* @param string $phone
* @param string $text
*\/
<\/span>public function <\/span>sms<\/span>(<\/span>$phone <\/span>= <\/span>null<\/span>, <\/span>$msg <\/span>= <\/span>null<\/span>) {
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>\"SMSTO:<\/span>{<\/span>$phone<\/span>}<\/span>:<\/span>{<\/span>$msg<\/span>}<\/span>\"<\/span>;
}
<\/span>\/**
* VCARD QR code
*
* @param string $name
* @param string $address
* @param string $phone
* @param string $email
*\/
<\/span>public function <\/span>contact<\/span>(<\/span>$name <\/span>= <\/span>null<\/span>, <\/span>$address <\/span>= <\/span>null<\/span>, <\/span>$phone <\/span>= <\/span>null<\/span>, <\/span>$email <\/span>= <\/span>null<\/span>) {
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>\"MECARD:N:<\/span>{<\/span>$name<\/span>}<\/span>;ADR:<\/span>{<\/span>$address<\/span>}<\/span>;TEL:<\/span>{<\/span>$phone<\/span>}<\/span>;EMAIL:<\/span>{<\/span>$email<\/span>}<\/span>;;\"<\/span>;
}
<\/span>\/**
* Content (gif, jpg, png, etc.) QR code
*
* @param string $type
* @param string $size
* @param string $content
*\/
<\/span>public function <\/span>content<\/span>(<\/span>$type <\/span>= <\/span>null<\/span>, <\/span>$size <\/span>= <\/span>null<\/span>, <\/span>$content <\/span>= <\/span>null<\/span>) {
<\/span>$this<\/span>-><\/span>codeData <\/span>= <\/span>\"CNTS:TYPE:<\/span>{<\/span>$type<\/span>}<\/span>;LNG:<\/span>{<\/span>$size<\/span>}<\/span>;BODY:<\/span>{<\/span>$content<\/span>}<\/span>;;\"<\/span>;
}
<\/span>\/**
* Generate QR code image
*
* @param int $size
* @param string $filename
* @return bool
*\/
<\/span>public function <\/span>qrCode<\/span>(<\/span>$size <\/span>= <\/span>200<\/span>, <\/span>$filename <\/span>= <\/span>null<\/span>) {
<\/span>$ch <\/span>= <\/span>curl_init<\/span>();
<\/span>curl_setopt<\/span>(<\/span>$ch<\/span>, <\/span>CURLOPT_URL<\/span>, <\/span>$this<\/span>-><\/span>googleChartAPI<\/span>);
<\/span>curl_setopt<\/span>(<\/span>$ch<\/span>, <\/span>CURLOPT_POST<\/span>, <\/span>true<\/span>);
<\/span>curl_setopt<\/span>(<\/span>$ch<\/span>, <\/span>CURLOPT_POSTFIELDS<\/span>, <\/span>\"chs=<\/span>{<\/span>$size<\/span>}<\/span>x<\/span>{<\/span>