PHP rtrim函数bug_PHP教程

<?<span php
</span><span $str</span> = <span rtrim</span>('article_list.html', '.html'<span );
</span><span echo</span> <span $str</span><span ;

</span><span echo</span> '<br />'<span ;

</span><span $str</span> = <span rtrim</span>('article_index.html', '.html'<span );
</span><span echo</span> <span $str</span><span ;

</span><span echo</span> '<br />'<span ;

</span><span $str</span> = <span rtrim</span>('articleABCT.html', '.html'<span );
</span><span echo</span> <span $str</span><span ;

</span><span echo</span> '<br />'<span ;
</span>?>