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File system function Library: Tempnam

Source: Internet
Author: User
Keywords PHP Chinese function Manual Tempnam file system function library
Tags aliyun create directory file file system function library function function library html
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Tempnam

(PHP3, PHP4)

Tempnam---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Create a unique file name

Syntax: String Tempnam (String dir, string prefix)

Description:

Creates a unique temporary file name in the specified directory, and Tempnam () may produce a file name in the system's temporary (temporary) directory if the directory does not exist.

The performance (behaviour) of the Tempnam () depends on the system, and on Windows, the TMP environment variable will invalidate the parameter dir, tmpdir the environment variable to a level (precedence) on Linux.

Success returns the temporary file name, and the null string returns the failure.

Example:

<?php

$tmpfname = Tempnam ("/tmp", "FOO");

?>

Reference: Tmpfile ()

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