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barcode-readme.html
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<html>
<head>
<title>barcode.php readme</title>
<style>
body {
font-family: Helvetica, sans-serif;
padding: 1em;
}
th, td {
padding: 4pt 1em 4pt 0;
vertical-align: top;
}
</style>
</head>
<body>
<h1>barcode.php</h1>
<h3>Generate barcodes from a single PHP file. MIT license.</h3>
<p>Use from a PHP script:</p>
<pre>
include 'barcode.php';
$generator = new barcode_generator();
/* Output directly to standard output. */
$generator->output_image($format, $symbology, $data, $options);
/* Create bitmap image. */
$image = $generator->render_image($symbology, $data, $options);
imagepng($image);
imagedestroy($image);
/* Generate SVG markup. */
$svg = $generator->render_svg($symbology, $data, $options);
echo $svg;
</pre>
<p>Use with GET or POST:</p>
<pre>
barcode.php?f=<i>format</i>&s=<i>symbology</i>&d=<i>data</i>&<i>options</i>
</pre>
<p>e.g.</p>
<pre>
barcode.php?f=png&s=upc-e&d=06543217
barcode.php?f=svg&s=qr&d=HELLO%20WORLD&sf=8&ms=r&md=0.8
</pre>
<h4>Options:</h4>
<table>
<tr>
<td><code>f</code></td>
<td>
Format. One of:
<table>
<tr>
<td>
<code>png</code><br>
<code>gif</code><br>
<code>jpeg</code><br>
<code>svg</code>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td><code>s</code></td>
<td>
Symbology (type of barcode). One of:
<table>
<tr>
<td>
<code>upc-a</code><br>
<code>upc-e</code><br>
<code>ean-8</code><br>
<code>ean-13</code><br>
<code>ean-13-pad</code><br>
<code>ean-13-nopad</code><br>
<code>ean-128</code>
</td>
<td>
<code>code-39</code><br>
<code>code-39-ascii</code><br>
<code>code-93</code><br>
<code>code-93-ascii</code><br>
<code>code-128</code><br>
<code>codabar</code><br>
<code>itf</code>
</td>
<td>
<code>qr</code><br>
<code>qr-l</code><br>
<code>qr-m</code><br>
<code>qr-q</code><br>
<code>qr-h</code>
</td>
<td>
<code>dmtx</code><br>
<code>dmtx-s</code><br>
<code>dmtx-r</code><br>
<code>gs1-dmtx</code><br>
<code>gs1-dmtx-s</code><br>
<code>gs1-dmtx-r</code>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td><code>d</code></td>
<td>
Data.<br>
For UPC or EAN, use <code>*</code> for missing digit.<br>
For Codabar, use <code>ABCD</code> or <code>ENT*</code>
for start and stop characters.<br>
For QR, encode in Shift-JIS for kanji mode.
</td>
</tr>
<tr>
<td><code>w</code></td>
<td>Width of image. Overrides <code>sf</code> or <code>sx</code>.</td>
</tr>
<tr>
<td><code>h</code></td>
<td>Height of image. Overrides <code>sf</code> or <code>sy</code>.</td>
</tr>
<tr>
<td><code>sf</code></td>
<td>
Scale factor.
Default is 1 for linear barcodes or 4 for matrix barcodes.
</td>
</tr>
<tr>
<td><code>sx</code></td>
<td>Horizontal scale factor. Overrides <code>sf</code>.</td>
</tr>
<tr>
<td><code>sy</code></td>
<td>Vertical scale factor. Overrides <code>sf</code>.</td>
</tr>
<tr>
<td><code>p</code></td>
<td>
Padding.
Default is 10 for linear barcodes or 0 for matrix barcodes.
</td>
</tr>
<tr>
<td><code>pv</code></td>
<td>Top and bottom padding. Default is value of <code>p</code>.</td>
</tr>
<tr>
<td><code>ph</code></td>
<td>Left and right padding. Default is value of <code>p</code>.</td>
</tr>
<tr>
<td><code>pt</code></td>
<td>Top padding. Default is value of <code>pv</code>.</td>
</tr>
<tr>
<td><code>pl</code></td>
<td>Left padding. Default is value of <code>ph</code>.</td>
</tr>
<tr>
<td><code>pr</code></td>
<td>Right padding. Default is value of <code>ph</code>.</td>
</tr>
<tr>
<td><code>pb</code></td>
<td>Bottom padding. Default is value of <code>pv</code>.</td>
</tr>
<tr>
<td><code>bc</code></td>
<td>Background color in <code>#RRGGBB</code> format.</td>
</tr>
<tr>
<td><code>cs</code></td>
<td>Color of spaces in <code>#RRGGBB</code> format.</td>
</tr>
<tr>
<td><code>cm</code></td>
<td>Color of modules in <code>#RRGGBB</code> format.</td>
</tr>
<tr>
<td><code>tc</code></td>
<td>
Text color in <code>#RRGGBB</code> format.
Applies to linear barcodes only.
</td>
</tr>
<tr>
<td><code>tf</code></td>
<td>
Text font for SVG output.
Default is <code>monospace</code>.
Applies to linear barcodes only.
</td>
</tr>
<tr>
<td><code>ts</code></td>
<td>
Text size.
For SVG output, this is in points and the default is 10.
For PNG, GIF, or JPEG output, this is the GD library
built-in font number from 1 to 5 and the default is 1.
Applies to linear barcodes only.
</td>
</tr>
<tr>
<td><code>th</code></td>
<td>
Distance from text baseline to bottom of modules.
Default is 10.
Applies to linear barcodes only.
</td>
</tr>
<tr>
<td><code>ms</code></td>
<td>
Module shape.
One of:
<code>s</code> for square,
<code>r</code> for round, or
<code>x</code> for X-shaped.
Default is <code>s</code>.
Applies to matrix barcodes only.
</td>
</tr>
<tr>
<td><code>md</code></td>
<td>
Module density.
A number between 0 and 1.
Default is 1.
Applies to matrix barcodes only.
</td>
</tr>
<tr>
<td><code>wq</code></td>
<td>
Width of quiet area units.
Default is 1.
Use 0 to suppress quiet area.
</td>
</tr>
<tr>
<td><code>wm</code></td>
<td>
Width of narrow modules and spaces.
Default is 1.
</td>
</tr>
<tr>
<td><code>ww</code></td>
<td>
Width of wide modules and spaces.
Applies to Code 39, Codabar, and ITF only.
Default is 3.
</td>
</tr>
<tr>
<td><code>wn</code></td>
<td>
Width of narrow space between characters.
Applies to Code 39 and Codabar only.
Default is 1.
</td>
</tr>
</table>
</body>
</html>