PHP finfo_close() Function

Last Updated : 24 Apr, 2025

The finfo_close() function is an inbuilt function in PHP that is used to close the file instance that is opened by the finfo_open() function.

Syntax:

finfo_close($finfo): bool

Parameters: This function accepts only one parameter which is described below.

$finfo: The file info resource returned by finfo_open() function.

Return Values: The finfo_close() function returns true if this function successfully closes the finfo instance of the file otherwise this function will return "false".

Program 1: The following program demonstrates the finfo_close() function. Make sure the "text.txt" file is available in the given root location.

PHP

<?php  $finfoinstance = finfo_open(FILEINFO_MIME, null);  if (!$finfoinstance) {     echo "Opening file data is failed";     exit(); }  // Return file MIME $filename = "./text.txt"; echo finfo_file($finfoinstance, $filename); finfo_close($finfoinstance); ?>

Output:

application/x-empty; charset=binary

Program 2: The following program demonstrates the finfo_close() function. Make sure the given "output.txt" file is available in the given location.

PHP

<?php  // Create a new Fileinfo resource $fileInfo = finfo_open(FILEINFO_MIME_TYPE);  // Check if the Fileinfo resource // was created successfully if (!$fileInfo) {     die("Failed to create Fileinfo resource."); }  // Get the file type of a specific file $filename = "./output.txt"; $fileType = finfo_file($fileInfo, $filename); echo "File type of $filename is: $fileType\n";  // Close the Fileinfo resource finfo_close($fileInfo);  ?>

Output:

File type of ./output.txt is: text/plain

Reference: https://www.php.net/manual/en/function.finfo-close.php

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