README

SVG Express PHP is a library for creating SVG documents. It's work in progress and far from complete.

Installation using Composer

SVG Express for PHP requires PHP 5.4 or newer.

Add the following to your project's composer.json file:

{
    "minimum-stability": "dev",
    "require": {
        "clacy-builders/svg": "0.1"
    }
}

Run composer install or composer update.

Basic usage

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

use ClacyBuilders\Svg\Svg;

$dbRows = array(
        ['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->append('style')->appendText(".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([0, 0], 400, 400)->setClass('bgr');
$group->text('Clicks 1/2015', [200, 45])->setClass('title');
$solid = $group->polygon()->setClass('solid');
$solid->setPoints([[350, 330], [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;
    $solid->addPoint([$x, $y]);
    $graph->addPoint([$x, $y]);
    $labels1->tspan($row['clicks'], [$x - 10, $y - 15]);
    $labels2->tspan(
            strftime('%b', (new DateTime($row['month']))->getTimestamp()),
            [$x - 10, 350]);
}
print $svg->getMarkup();

The generated markup:

<?xml version="1.0" encoding="UTF-8" ?>
<svg width="400" height="400">
    <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;
        }
    </style>
    <g>
        <rect x="0" y="0" width="400" height="400" class="bgr"/>
        <text x="200" y="45" class="title">Clicks 1/2015</text>
        <polygon points="350,330 50,330 50,249.5 110,220 170,228.5 230,196.5 290,177 350,177.5" class="solid"/>
        <polyline points="50,249.5 110,220 170,228.5 230,196.5 290,177 350,177.5" class="graph"/>
        <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>