mirror of
https://github.com/janunger/rheinwerk-video-training.git
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77 lines
4.6 KiB
HTML
77 lines
4.6 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Minimal example</title>
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<link type="text/css" rel="stylesheet" href="../fpdf.css">
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</head>
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<body>
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<h1>Minimal example</h1>
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Let's start with the classic example:
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<div class="source">
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<pre><code><?php
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<span class="kw">require(</span><span class="str">'fpdf.php'</span><span class="kw">);
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</span>$pdf <span class="kw">= new </span>FPDF<span class="kw">();
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</span>$pdf<span class="kw">-></span>AddPage<span class="kw">();
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</span>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">'B'</span><span class="kw">,</span>16<span class="kw">);
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</span>$pdf<span class="kw">-></span>Cell<span class="kw">(</span>40<span class="kw">,</span>10<span class="kw">,</span><span class="str">'Hello World!'</span><span class="kw">);
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</span>$pdf<span class="kw">-></span>Output<span class="kw">();
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</span>?></code></pre>
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</div>
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<p class='demo'><a href='tuto1.php' target='_blank' class='demo'>[Demo]</a></p>
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After including the library file, we create an FPDF object.
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The <a href='../doc/__construct.htm'>constructor</a> is used here with the default values: pages are in A4 portrait and
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the unit of measure is millimeter. It could have been specified explicitly with:
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<div class="source">
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<pre><code>$pdf <span class="kw">= new </span>FPDF<span class="kw">(</span><span class="str">'P'</span><span class="kw">,</span><span class="str">'mm'</span><span class="kw">,</span><span class="str">'A4'</span><span class="kw">);
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</span></code></pre>
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</div>
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It's possible to use landscape (<code>L</code>), other page sizes (such as <code>Letter</code> and
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<code>Legal</code>) and units (<code>pt</code>, <code>cm</code>, <code>in</code>).
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<br>
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<br>
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There's no page at the moment, so we have to add one with <a href='../doc/addpage.htm'>AddPage()</a>. The origin
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is at the upper-left corner and the current position is by default set at 1 cm from the
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borders; the margins can be changed with <a href='../doc/setmargins.htm'>SetMargins()</a>.
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<br>
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<br>
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Before we can print text, it's mandatory to select a font with <a href='../doc/setfont.htm'>SetFont()</a>.
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We choose Arial bold 16:
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<div class="source">
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<pre><code>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">'B'</span><span class="kw">,</span>16<span class="kw">);
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</span></code></pre>
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</div>
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We could have specified italics with I, underlined with U or a regular font with an empty string
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(or any combination). Note that the font size is given in points, not millimeters (or another user
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unit); it's the only exception. The other standard fonts are Times, Courier, Symbol and ZapfDingbats.
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<br>
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<br>
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We can now print a cell with <a href='../doc/cell.htm'>Cell()</a>. A cell is a rectangular area, possibly framed,
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which contains a line of text. It is output at the current position. We specify its dimensions,
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its text (centered or aligned), if borders should be drawn, and where the current position
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moves after it (to the right, below or to the beginning of the next line). To add a frame, we would do this:
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<div class="source">
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<pre><code>$pdf<span class="kw">-></span>Cell<span class="kw">(</span>40<span class="kw">,</span>10<span class="kw">,</span><span class="str">'Hello World !'</span><span class="kw">,</span>1<span class="kw">);
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</span></code></pre>
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</div>
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To add a new cell next to it with centered text and go to the next line, we would do:
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<div class="source">
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<pre><code>$pdf<span class="kw">-></span>Cell<span class="kw">(</span>60<span class="kw">,</span>10<span class="kw">,</span><span class="str">'Powered by FPDF.'</span><span class="kw">,</span>0<span class="kw">,</span>1<span class="kw">,</span><span class="str">'C'</span><span class="kw">);
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</span></code></pre>
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</div>
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Remark: the line break can also be done with <a href='../doc/ln.htm'>Ln()</a>. This method additionnaly allows to specify
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the height of the break.
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<br>
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<br>
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Finally, the document is closed and sent to the browser with <a href='../doc/output.htm'>Output()</a>. We could have saved
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it to a file by passing the appropriate parameters.
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<br>
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<br>
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<strong>Caution:</strong> in case when the PDF is sent to the browser, nothing else must be output by the
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script, neither before nor after (no HTML, not even a space or a carriage return). If you send something
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before, you will get the error message: "Some data has already been output, can't send PDF file". If you
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send something after, the document might not display.
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</body>
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</html>
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