242 lines
5.6 KiB
PHP
242 lines
5.6 KiB
PHP
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<?php
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# Copyright (C) 2006-2010 Tobias Leupold <tobias.leupold@web.de>
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#
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# This file is part of the b8 package
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation in version 2.1 of the License.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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### This is an example script demonstrating how b8 can be used. ###
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#/*
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# Use this code block if you want to use Berkeley DB.
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# The database filename is interpreted relative to the b8.php script location.
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$config_b8 = array(
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'storage' => 'dba'
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);
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$config_database = array(
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'database' => 'wordlist.db',
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'handler' => 'db4'
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);
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#*/
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/*
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# Use this code block if you want to use MySQL.
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# An existing link resource can be passed to b8 by setting
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# $config_database['connection'] to this link resource.
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# Be sure to set your database access data otherwise!
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$config_b8 = array(
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'storage' => 'mysql'
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);
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$config_database = array(
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'database' => 'test',
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'table_name' => 'b8_wordlist',
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'host' => 'localhost',
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'user' => '',
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'pass' => ''
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);
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*/
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# To be able to calculate the time the classification took
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$time_start = NULL;
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function microtimeFloat()
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{
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list($usec, $sec) = explode(" ", microtime());
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return ((float) $usec + (float) $sec);
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}
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# Output a nicely colored rating
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function formatRating($rating)
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{
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if($rating === FALSE)
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return "<span style=\"color:red\">could not calculate spaminess</span>";
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$red = floor(255 * $rating);
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$green = floor(255 * (1 - $rating));
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return "<span style=\"color:rgb($red, $green, 0);\"><b>" . sprintf("%5f", $rating) . "</b></span>";
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}
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echo <<<END
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<title>example b8 interface</title>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
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<meta name="dc.creator" content="Tobias Leupold" />
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<meta name="dc.rights" content="Copyright (c) by Tobias Leupold" />
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</head>
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<body>
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<div>
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<h1>example b8 interface</h1>
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END;
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$postedText = "";
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if(isset($_POST['action']) and $_POST['text'] == "")
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echo "<p style=\"color:red;\"><b>Please type in a text!</b></p>\n\n";
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elseif(isset($_POST['action']) and $_POST['text'] != "") {
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$time_start = microtimeFloat();
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# Include the b8 code
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require dirname(__FILE__) . "/../b8/b8.php";
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# Create a new b8 instance
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$b8 = new b8($config_b8, $config_database);
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# Check if everything worked smoothly
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$started_up = $b8->validate();
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if($started_up !== TRUE) {
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echo "<b>example:</b> Could not initialize b8. error code: $started_up";
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exit;
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}
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$text = stripslashes($_POST['text']);
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$postedText = htmlentities($text, ENT_QUOTES, 'UTF-8');
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switch($_POST['action']) {
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case "Classify":
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echo "<p><b>Spaminess: " . formatRating($b8->classify($text)) . "</b></p>\n";
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break;
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case "Save as Spam":
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$ratingBefore = $b8->classify($text);
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$b8->learn($text, b8::SPAM);
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$ratingAfter = $b8->classify($text);
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echo "<p>Saved the text as Spam</p>\n\n";
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echo "<div><table>\n";
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echo "<tr><td>Classification before learning:</td><td>" . formatRating($ratingBefore) . "</td></tr>\n";
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echo "<tr><td>Classification after learning:</td><td>" . formatRating($ratingAfter) . "</td></tr>\n";
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echo "</table></div>\n\n";
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break;
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case "Save as Ham":
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$ratingBefore = $b8->classify($text);
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$b8->learn($text, b8::HAM);
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$ratingAfter = $b8->classify($text);
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echo "<p>Saved the text as Ham</p>\n\n";
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echo "<div><table>\n";
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echo "<tr><td>Classification before learning:</td><td>" . formatRating($ratingBefore) . "</td></tr>\n";
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echo "<tr><td>Classification after learning:</td><td>" . formatRating($ratingAfter) . "</td></tr>\n";
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echo "</table></div>\n\n";
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break;
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case "Delete from Spam":
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$b8->unlearn($text, b8::SPAM);
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echo "<p style=\"color:green\">Deleted the text from Spam</p>\n\n";
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break;
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case "Delete from Ham":
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$b8->unlearn($text, b8::HAM);
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echo "<p style=\"color:green\">Deleted the text from Ham</p>\n\n";
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break;
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}
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$mem_used = round(memory_get_usage() / 1048576, 5);
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$peak_mem_used = round(memory_get_peak_usage() / 1048576, 5);
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$time_taken = round(microtimeFloat() - $time_start, 5);
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}
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echo <<<END
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<div>
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<form action="{$_SERVER['PHP_SELF']}" method="post">
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<div>
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<textarea name="text" cols="50" rows="16">$postedText</textarea>
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</div>
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<table>
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<tr>
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<td><input type="submit" name="action" value="Classify" /></td>
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</tr>
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<tr>
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<td><input type="submit" name="action" value="Save as Spam" /></td>
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<td><input type="submit" name="action" value="Save as Ham" /></td>
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</tr>
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<tr>
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<td><input type="submit" name="action" value="Delete from Spam" /></td>
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<td><input type="submit" name="action" value="Delete from Ham" /></td>
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</tr>
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</table>
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</form>
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</div>
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</div>
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END;
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if($time_start !== NULL) {
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echo <<<END
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<div>
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<table border="0">
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<tr><td>Memory used: </td><td>$mem_used MB</td></tr>
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<tr><td>Peak memory used:</td><td>$peak_mem_used MB</td></tr>
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<tr><td>Time taken: </td><td>$time_taken sec</td></tr>
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</table>
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</div>
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END;
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}
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?>
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</body>
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</html>
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