How to implemet graph in mail body in php

Implementing a graph in an email body in PHP can be a bit complex, but I'll provide a general outline of the steps you can follow. We'll use a simple example of a bar chart using the Google Charts API.

Step 1: Prepare your data

Create a PHP script that generates the data for your graph. For example, let's say you want to display the number of sales for each product in a store. You can use a database query to retrieve the data and store it in an array.

<?php
// assume you have a database connection and a query to retrieve sales data
$salesData = array();
$query = "SELECT product_name, SUM(sales) AS total_sales FROM sales GROUP BY product_name";
$result = mysqli_query($conn, $query);
while ($row = mysqli_fetch_assoc($result)) {
    $salesData[] = array('product' => $row['product_name'], 'sales' => $row['total_sales']);
}
?>

Step 2: Create the graph

Use the Google Charts API to create the graph. You'll need to create a JSON object that contains the data and the chart configuration. In this example, we'll use a bar chart.

<?php
// create the JSON object
$jsonData = array();
$jsonData['chart'] = array(
    'type' => 'BarChart',
    'title' => 'Sales by Product',
    'xAxisTitle' => 'Product',
    'yAxisTitle' => 'Sales'
);
$jsonData['data'] = array();
foreach ($salesData as $product) {
    $jsonData['data'][] = array($product['product'], $product['sales']);
}
?>

Step 3: Embed the graph in the email body

Use the embed function from the PHPMailer library (or a similar library) to embed the graph in the email body. You'll need to create a HTML string that contains the graph.

<?php
// create the HTML string
$html = '<img src="data:image/svg+xml;base64,'. base64_encode(json_encode($jsonData)). '">';

// use PHPMailer to send the email
$mail = new PHPMailer();
$mail->setFrom('[email protected]');
$mail->addAddress('[email protected]');
$mail->Subject = 'Sales Report';
$mail->Body = $html;
$mail->send();
?>

Step 4: Send the email

Use a PHPMailer library (or a similar library) to send the email with the graph embedded in the body.

Here's the complete code:

<?php
// assume you have a database connection and a query to retrieve sales data
$salesData = array();
$query = "SELECT product_name, SUM(sales) AS total_sales FROM sales GROUP BY product_name";
$result = mysqli_query($conn, $query);
while ($row = mysqli_fetch_assoc($result)) {
    $salesData[] = array('product' => $row['product_name'], 'sales' => $row['total_sales']);
}

// create the JSON object
$jsonData = array();
$jsonData['chart'] = array(
    'type' => 'BarChart',
    'title' => 'Sales by Product',
    'xAxisTitle' => 'Product',
    'yAxisTitle' => 'Sales'
);
$jsonData['data'] = array();
foreach ($salesData as $product) {
    $jsonData['data'][] = array($product['product'], $product['sales']);
}

// create the HTML string
$html = '<img src="data:image/svg+xml;base64,'. base64_encode(json_encode($jsonData)). '">';

// use PHPMailer to send the email
$mail = new PHPMailer();
$mail->setFrom('[email protected]');
$mail->addAddress('[email protected]');
$mail->Subject = 'Sales Report';
$mail->Body = $html;
$mail->send();
?>

This code generates a bar chart using the Google Charts API and embeds it in an email body using the PHPMailer library. When the recipient opens the email, they should see the graph.

Note that this is a basic example, and you may need to customize the code to fit your specific requirements. Additionally, you'll need to ensure that the recipient's email client supports embedded images and SVG graphics.