php man page for tempnam

TEMPNAM(3)								 1								TEMPNAM(3)

tempnam - Create file with unique file name

SYNOPSIS
       string tempnam (string  $dir, string  $prefix)

DESCRIPTION
	Creates  a file with a unique filename, with access permission set to 0600, in the specified directory. If the directory does not exist or
       is not writable, tempnam(3) may generate a file in the system's temporary directory, and return the full path to that file,  including  its
       name.

PARAMETERS
	      o $dir
		- The directory where the temporary filename will be created.

	      o $prefix
		- The prefix of the generated temporary filename.

	      Note

		      Windows uses only the first three characters of prefix.

RETURN VALUES
	Returns the new temporary filename (with path), or FALSE on failure.

CHANGELOG
       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 4.0.3	|						    |
       |	|						    |
       |	|  This  function's  behavior changed in 4.0.3. The |
       |	| temporary file is also created to  avoid  a  race |
       |	| condition  where  the  file  might  appear in the |
       |	| filesystem between the time the string was gener- |
       |	| ated	and before the script gets around to creat- |
       |	| ing the file. Note, that you need to	remove	the |
       |	| file	in case you need it no more, it is not done |
       |	| automatically.				    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES
       Example #1

	      tempnam(3) example

	      <?php
	      $tmpfname = tempnam("/tmp", "FOO");

	      $handle = fopen($tmpfname, "w");
	      fwrite($handle, "writing to tempfile");
	      fclose($handle);

	      // do here something

	      unlink($tmpfname);
	      ?>

NOTES
       Note

	       If PHP cannot create a file in the specified $dir parameter, it falls back on the system default. On NTFS this also happens if  the
	      specified $dir contains more than 65534 files.

SEE ALSO
       tmpfile(3), sys_get_temp_dir(3), unlink(3).

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