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?>
<div id="fdf.examples" class="chapter">
 <h1 class="title">Ejemplos</h1>

 <p class="para">
  Los siguientes ejemplos muestran cómo evaluar los datos
  del formulario.
  <div class="example" id="example-1">
   <p><strong>Ejemplo #1 Evaluar un documento FDF</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">// Abrir un fichero FDF desde una string proporcionada por la extensión PDF<br />// El formulario PDF contiene varios campos de texto con los nombres<br />// volume, date, comment, publisher, preparer y dos casillas de verificación<br />// show_publisher y show_preparer.<br /></span><span style="color: #0000BB">$fdf </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_open_string</span><span style="color: #007700">(</span><span style="color: #0000BB">$HTTP_FDF_DATA</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$volume </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"volume"</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'El campo Volume contiene el valor: "&lt;strong&gt;' </span><span style="color: #007700">. </span><span style="color: #0000BB">$volume </span><span style="color: #007700">. </span><span style="color: #DD0000">'&lt;/strong&gt;"&lt;br /&gt;'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$date </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"date"</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'El valor del campo date era "&lt;strong&gt;' </span><span style="color: #007700">. </span><span style="color: #0000BB">$date </span><span style="color: #007700">. </span><span style="color: #DD0000">'&lt;/strong&gt;"&lt;br /&gt;'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$comment </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"comment"</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'El valor del campo comment era "&lt;strong&gt;' </span><span style="color: #007700">. </span><span style="color: #0000BB">$comment </span><span style="color: #007700">. </span><span style="color: #DD0000">'&lt;/strong&gt;"&lt;br /&gt;'</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"show_publisher"</span><span style="color: #007700">) == </span><span style="color: #DD0000">"On"</span><span style="color: #007700">) {<br />  </span><span style="color: #0000BB">$publisher </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"publisher"</span><span style="color: #007700">);<br />  echo </span><span style="color: #DD0000">"El valor del campo Publisher era: '&lt;strong&gt;" </span><span style="color: #007700">. </span><span style="color: #0000BB">$publisher </span><span style="color: #007700">. </span><span style="color: #DD0000">"&lt;/strong&gt;&lt;br /&gt;"</span><span style="color: #007700">;<br />} else<br />  echo </span><span style="color: #DD0000">'El valor del campo Publisher no debe ser mostrado.&lt;br /&gt;'</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"show_preparer"</span><span style="color: #007700">) == </span><span style="color: #DD0000">"On"</span><span style="color: #007700">) {<br />  </span><span style="color: #0000BB">$preparer </span><span style="color: #007700">= </span><span style="color: #0000BB">fdf_get_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">, </span><span style="color: #DD0000">"preparer"</span><span style="color: #007700">);<br />  echo </span><span style="color: #DD0000">'El valor del campo Preparer era "&lt;strong&gt;' </span><span style="color: #007700">. </span><span style="color: #0000BB">$preparer </span><span style="color: #007700">. </span><span style="color: #DD0000">'&lt;/strong&gt;"&lt;br /&gt;'</span><span style="color: #007700">;<br />} else<br />  echo </span><span style="color: #DD0000">'El valor del campo Preparer no debe ser mostrado.&lt;br /&gt;'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">fdf_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$fdf</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

  </div>
 </p>
</div>
<?php manual_footer($setup); ?>