README

A library for creating SVG documents written in PHP 7.

Installation with Composer

This package is available on packagist, so you can use Composer to install it. Run the following command in your shell:

composer require lib16/svg

Basic Usage

<?php
require_once 'vendor/autoload.php';

use Lib16\SVG\Svg;
use Lib16\Graphics\Geometry\Point;

$dbRows = [
    ['month' => '2015-01', 'clicks' => '501'],
    ['month' => '2015-02', 'clicks' => '560'],
    ['month' => '2015-03', 'clicks' => '543'],
    ['month' => '2015-04', 'clicks' => '607'],
    ['month' => '2015-05', 'clicks' => '646'],
    ['month' => '2015-06', 'clicks' => '645']
];

$svg = Svg::createSvg(400, 400);
$svg->defs()->style('.bgr {
    fill: #593;
    fill-opacity: 0.25;
}
.graph {
    fill: none;
    stroke-width: 3px;
    stroke: #593;
}
.solid {
    fill: #593;
    fill-opacity: 0.5;
}
.labels, .title {
    font-family: open sans, tahoma, verdana, sans-serif;
    fill: 333;
    stroke: none;
}
.labels {
    font-size: 16px;
}
.title {
    font-size: 24px;
    text-anchor: middle;
}');
$group = $svg->g();
$group->rect(new Point(0, 0), 400, 400)->setClass('bgr');
$group->text('Clicks 1/2015', new Point(200, 45))->setClass('title');
$solid = $group->polygon()->setClass('solid');
$solid->setPoints(new Point(350, 330), new Point(50, 330));
$graph = $group->polyline()->setClass('graph');
$labels1 = $group->text()->setClass('labels');
$labels2 = $group->text()->setClass('labels');
foreach ($dbRows as $i => $row) {
    $x = 50 + $i * 60;
    $y = (1000 - $row['clicks']) / 2;
    $solid->setPoints(new Point($x, $y));
    $graph->setPoints(new Point($x, $y));
    $labels1->tspan($row['clicks'], new Point($x - 10, $y - 15));
    $labels2->tspan(
        strftime('%b', (new DateTime($row['month']))->getTimestamp()),
        new Point($x - 10, 350)
    );
}
print $svg->headerfields('stats');
print $svg->getMarkup();

The generated markup:

<?xml version="1.0" encoding="UTF-8" ?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="400" height="400">
    <defs>
        <style>
        <![CDATA[
            .bgr {
                fill: #593;
                fill-opacity: 0.25;
            }
            .graph {
                fill: none;
                stroke-width: 3px;
                stroke: #593;
            }
            .solid {
                fill: #593;
                fill-opacity: 0.5;
            }
            .labels, .title {
                font-family: open sans, tahoma, verdana, sans-serif;
                fill: 333;
                stroke: none;
            }
            .labels {
                font-size: 16px;
            }
            .title {
                font-size: 24px;
                text-anchor: middle;
            }
        ]]>
        </style>
    </defs>
    <g>
        <rect x="0" y="0" width="400" height="400" class="bgr"/>
        <text x="200" y="45" class="title">Clicks 1/2015</text>
        <polygon class="solid" points="350,330 50,330 50,249.5 110,220 170,228.5 230,196.5 290,177 350,177.5"/>
        <polyline class="graph" points="50,249.5 110,220 170,228.5 230,196.5 290,177 350,177.5"/>
        <text class="labels">
            <tspan x="40" y="234.5">501</tspan>
            <tspan x="100" y="205">560</tspan>
            <tspan x="160" y="213.5">543</tspan>
            <tspan x="220" y="181.5">607</tspan>
            <tspan x="280" y="162">646</tspan>
            <tspan x="340" y="162.5">645</tspan>
        </text>
        <text class="labels">
            <tspan x="40" y="350">Jan</tspan>
            <tspan x="100" y="350">Feb</tspan>
            <tspan x="160" y="350">Mar</tspan>
            <tspan x="220" y="350">Apr</tspan>
            <tspan x="280" y="350">May</tspan>
            <tspan x="340" y="350">Jun</tspan>
        </text>
    </g>
</svg>