(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)
tempnam -- Create file with unique file name
Description
string tempnam (string dir, string prefix)
Creates a file with a unique filename in the specified directory. If the directory does
not exist, tempnam() may generate a file in the system's temporary directory, and return the
name of that.
Prior to PHP 4.0.6, the behaviour of the tempnam() function was system dependent.
On Windows the TMP environment variable will override the dir parameter, on Linux
the TMPDIR environment variable has precedence, while SVR4 will always use your dir
parameter if the directory it points to exists. Consult your system documentation on the tempnam(3)
function if in doubt.
Returns the new temporary filename, or the FALSE string on failure.
|
Example 1. tempnam() example
$tmpfname = tempnam ("/tmp", "FOO");
$fp = fopen($tmpfname, "w");
fwrite($fp, "writing to tempfile");
fclose($fp);
// do here something
unlink($tmpfname);
|
|
Note: 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 generated and before the the script gets around to creating the file. Note, that you need to
remove the file in case you need it no more, it is not done automatically.
See also tmpfile(), unlink().
|
