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[PHP] strange failure




Hello;

If this is off topic forgive me.

I have a php script file in a directory that is returning false
for both is_file and is_dir.

It is among a list of files and directories obtained from
scandir. The files are tested in a loop and all other files
in the directory do not have this problem.

There is no evidence of any problem with the file.

Is there any reason that this would happen with  and otherwise
normal plain text script file?

built in Apache/php on MacOSX Yosemite.

private function listAsync($_a)
               {
                // $_ a: array from scandir.
                $_owner = array();
                $_data = [];
                $_out = '';
                for($_itr = 0; $_itr < count($_a); $_itr++)
                  {
                   $_item = $_a[$_itr];
                   $_owner = self::getOwner($_item);
                   if(!isset($_owner['owner']))
                     {
                      $_owner['owner'] = "Not determined ".$_owner['error'];
                     }
                   $_octPerms = substr(sprintf('%o', @fileperms($_item)), -4);
                   $_data[count($_data)] .= "owner:".$_owner['owner']."|rwx:".self::getWRXPerms($_item)."|oct:".$_octPerms."|item:".basename($_item);
                  }
                $_out = implode($_data, '{');
                return $_out;
               }

private function getOwner($_target)
        {
         $_fileStat = array();
         $_errHead = self::$_className." -> ".__FUNCTION__;
         if(!is_file($_target) && !is_dir($_target))
           {
            $_fileStat['error'] =  $_errHead." error ".$_target." was not found, or is not a file or directory";
            return $_fileStat;
           }
         $_astat = stat($_target);
         $_owner = '';
         foreach(posix_getpwuid ( $_astat['uid'] ) as $_sKey=>$_value)
            {
             if($_sKey == 'name')
               {
                $_owner = self::$_users[$_value];
               }
             }
          $_fileStat['owner'] = $_owner;
          return $_fileStat;
         }
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