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.
Note:
If PHP cannot create a file in the specified dir
parameter, it falls back on the system default.
Returns the new temporary filename, or FALSE on
failure.
Example 1. tempnam() example
<?php $tmpfname = tempnam("/tmp", "FOO");
$handle = fopen($tmpfname, "w"); fwrite($handle, "writing to tempfile"); fclose($handle);
// 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 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.
tempnam php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online
Php tempnam syntax tutorial
php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.
