The tmpfile Function
The tmpfile function creates a temporary file with a unique name and returns a file pointer to it.
The file is opened in read and write mode (w+). When the file is closed or the script terminates, the temporary file is automatically deleted.
Syntax
tmpfile();
Example
Let's create a temporary file and write a string to it:
<?php
$tmp = tmpfile();
fwrite($tmp, 'test data');
rewind($tmp);
echo fread($tmp, 1024);
fclose($tmp);
?>
Code execution result:
'test data'
Example
Let's check that the file is automatically deleted after closing:
<?php
$tmp = tmpfile();
$meta = stream_get_meta_data($tmp);
echo file_exists($meta['uri']) ? 'Exists' : 'Deleted';
fclose($tmp);
echo file_exists($meta['uri']) ? 'Exists' : 'Deleted';
?>
Code execution result:
'ExistsDeleted'
