The finfo_file() function is an inbuilt function in PHP that is used for getting information about a file.
Syntax:
- Procedural Style:
public finfo_file( string $filename, int $flags = FILEINFO_NONE, ?resource $context = null ): string|false - Object-Oriented Style:
public finfo::file( string $filename, int $flags = FILEINFO_NONE, ?resource $context = null ): string|false
Parameters: This function accept four parameters that are described below:
- finfo: It specifies an instance for finfo, which returns by finfo_open().
- filename: It specifies the name of the file that we want to check.
- flags: This is file info constants.
- context: By default, this null is assigned for a description of contexts.
Return Value: This function returns the textual description of the content of file, or false if an error occurred
Example 1: In the below example, we will print the file information using the finfo_file() function.
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
Example 2: In the below example, we will print the file information using finfo_file() functions.
PHP
<?php $finfo = finfo_open(FILEINFO_MIME_TYPE); foreach (glob("*") as $filename) { echo finfo_file($finfo,$filename) . "\n"; } finfo_close($finfo); ?> |
Output:
text/x-php application/x-empty
Reference: https://www.php.net/manual/en/function.finfo-file.php
