Plagiarism checker made with PHP that uses DuckDuckGo
Jorge Maldonado Ventura c1aba798d0 Use GPLv3 instead of Lesser GPLv3 | 7 years ago | |
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LICENSE | 7 years ago | |
README.md | 7 years ago | |
plagiarismChecker.php | 7 years ago |
This library lets you check for plagiarism using DuckDuckGo. It lets you obtain easily the number of matches a query returns. To use it, just:
require_once 'plagiarismChecker.php';
$text = 'Saturn is the sixth planet from the Sun and the second-largest in the Solar System';
$result = checkPlagiarism($text);
The result variable will contain a list that contains an associative array for every DuckDuckGo result which contains:
$results['matches']
: number of word matches$results['abstract']
: the abstract of the result$results['url']
: the URL of the resultWith that information you can create a complicated plagiarism detector. Here you find a simple example of what you can do. I just consider some text plagiarism when DuckDuckGo highlight more than 7 words, it's not a very good method, feel free to write a better plagiarism detector:
if ($result === false) {
echo 'An error has occurred';
} else if($result === 0) {
echo 'No results.';
} else {
echo '<h2>Results</h2>';
echo '<p><em>Your text has been compared with ' . sizeof($result) . ' results.</em></p>';
echo '<ul>';
foreach ($result as $val) {
if ($val['matches'] > 7) {
echo '<li><strong>'. $val['matches'] . ' matched words</strong>: ' . $val['abstract'] . ' | URL: ' . $val['url'] . ' <strong> Plagiarism detected</strong></li>';
} else {
echo '<li><strong>'. $val['matches'] . ' matched words</strong>: ' . $val['abstract'] . ' | URL: ' . $val['url'] . ' <strong> No plagiarism detected</strong></li>';
}
}
echo '<ul>';
}
PHP with cURL library installed.