is_file(3) [php man page]

IS_FILE(3)								 1								IS_FILE(3)

is_file - Tells whether the filename is a regular file

SYNOPSIS

       bool is_file (string  $filename)

DESCRIPTION

	Tells whether the given file is a regular file.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns TRUE if the filename exists and is a regular file, FALSE otherwise.

       Note

	       Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results
	      for files which are larger than 2GB.

EXAMPLES

       Example #1

	      is_file(3) example

	      <?php
	      var_dump(is_file('a_file.txt')) . "
";
	      var_dump(is_file('/usr/bin/')) . "
";
	      ?>

	      The above example will output:

	      bool(true)
	      bool(false)

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols  and  Wrappers"  to  determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO

       is_dir(3), is_link(3).

PHP Documentation Group 														IS_FILE(3)

Check Out this Related Man Page

IS_LINK(3)								 1								IS_LINK(3)

is_link - Tells whether the filename is a symbolic link

SYNOPSIS

       bool is_link (string  $filename)

DESCRIPTION

	Tells whether the given file is a symbolic link.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns TRUE if the filename exists and is a symbolic link, FALSE otherwise.

EXAMPLES

       Example #1

	      Create and confirm if a file is a symbolic link

	      <?php
	      $link = 'uploads';

	      if (is_link($link)) {
		  echo(readlink($link));
	      } else {
		  symlink('uploads.php', $link);
	      }
	      ?>

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As  of  PHP  5.0.0,  this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO

       is_dir(3), is_file(3), readlink(3).

PHP Documentation Group 														IS_LINK(3)

Linux and UNIX Man Pages

is_file(3) [php man page]

Check Out this Related Man Page