php is_file determines the existence of a file_PHP tutorial

We used the file_exists and is_file functions to determine whether it is a file and whether the file exists. Here we have some special instructions for the path. Friends in need can refer to it.

//User determines whether the article exists is_file file_exists function implementation

代码如下	复制代码
function isFile($path)  {   if( file_exists($path) && is_file($path))  {   return true;  }  else  {   return false;  }  }

//Note that the is_file and file_exists functions cannot determine the absolute path. For example, my $_path ='/upfile/' above will show that the file cannot be found. If you use ../upfile/, it will be OK.

http://www.bkjia.com/PHPjc/631316.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631316.htmlTechArticleWe use the file_exists and is_file functions to determine whether it is a file and whether the file exists. Here we talk about the path Here’s a special note, friends in need can refer to it. ...