Security issue and temp files Post: 302359817

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LEARN ABOUT PHP

is_link

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)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Tidying up temp files on exit of script

Discussion started by: Bab00shka

2. Shell Programming and Scripting

Script to Delete temp files and check file system

Discussion started by: Bwood1377

3. Shell Programming and Scripting

Joining 3 AWK scripts to avoid use "temp" files

Discussion started by: cgkmal

4. UNIX for Dummies Questions & Answers

Temp mysql files jamming CPU resources

Discussion started by: egully