PHP tempnam() Function Usage and Example

The tempnam() function can create a temporary file with a unique filename in the specified directory and return the new temporary filename (with path), or return false on failure.

Syntax

string tempnam ( string $dir, string $prefix )

This function can create a file with a unique filename and set the access permissions to 0 in the specified directory600. If the directory does not exist or is not writable, the tempnam() function may generate a file in the system's temporary directory and return the complete path (including its name).

Online Example

<?php 
   echo tempnam("C:\PhpProject", "TMP0");
?>

Output Result

C:\PhpProject\TMPABFA.tmp