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HomeBackend DevelopmentPHP Tutorial动态新闻发布的实现及其技巧

做网站要做的有一定的规模,动态的新闻发布是必不可少的。实现的方法有很多,这里建议用文本文件来生成,又快又简单省事。好吧,让我们立即着手工作吧。
首先,我们假设已经有一个文件夹名为 "news",在"c://news"下,用来存储新闻的文本。并且我们假设这些文本的名字就是所要发布的新闻的标题。
1,首先,我们限读取文件夹的指针。
  $handle=dir("c://news");
2,用一个while语句,获取各个文本文件的指针,并且将其一个一个的输出。
  while($file=$handle->read())
{
  echo $file;
}
3,当完成2的操作后,从IIS观察结果的输出,发现页面上除了列举所有文本文件的名称外,还会多出两个“奇怪的符号”。
 。
 。。
这两个标识的来源不是我们今天讨论的范围,但他们的出现会影响我们网页的“新闻发布”所以在显示的时候还是建议用一个if语句将他们skip掉。
4,用chop()来去掉文件名后面的".txt"
  $filename=chop($file,".");
 这样,$filename[0]就是我们要求的新闻的标题了。
5,完成显示后就要做链接了。我们假设处理显示新闻的文件为 show.php;
总结以上,我们可以这样书写程序

 $handle=dir("c://news");
 while($file=$handle->read())
{
if(($file!='.')&&($file!='..'))
{
  $filename=chop($file,"."); 
  echo " filename[0] ";
}
?>
再以后就是在网页上输出文本的工作了,这方面的说明已经很多。我就不再重复了。 
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