What is the function tmpfile() in PHP and how does it work for creating temporary files?

The function tmpfile() in PHP is used to create a temporary file with a unique name that can be used for storing temporary data. This function automatically creates a temporary file in the system's temporary directory and returns a file handle that can be used to read from or write to the file. Once the file is closed or the script finishes execution, the temporary file is automatically deleted. 

$tempFile = tmpfile();
fwrite($tempFile, "This is some temporary data.");
rewind($tempFile); // Rewind the file pointer to the beginning
echo fread($tempFile, filesize(stream_get_meta_data($tempFile)['uri']));
fclose($tempFile); // Close the file handle and delete the temporary file

Keywords

tmpfile PHP function temporary files creation

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