<?php //差分を見て前回から更新があったかどうか確認 $old_article = file_get_contents(''); $new_article = file_get_contents(''); echo $new_article; $diff = xdiff_string_diff($old_article, $new_article, 1); if (is_string($diff)) { echo "2 つの差分:\n"; echo $diff; } ?>
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