- fclose: documentation ( source)
- fopen: documentation ( source)
<?php
//差分を見て前回から更新があったかどうか確認
$old_article = fopen('./test_old.txt',"r");
$new_article = fopen('./test_new.txt',"r");
fclose($old_article);
fclose($new_article);
$diff = xdiff_string_diff($old_article, $new_article, 1);
if (is_string($diff)) {
echo "2 つの記事の差分:\n";
echo $diff;
}
?>