PHP finfo_buffer() Function

The finfo_buffer() is an inbuilt function in PHP that returns information about a string buffer.

Syntax:

• Procedural Style:

  string | false finfo_uffer(
      string $string, 
      int $flags = FILEINFO_NONE, 
      ?resource $context = null
  )

• Object-Oriented Style:

  public finfo::buffer(
      string $string, 
      int $flags = FILEINFO_NONE, 
      ?resource $context = null
  ): string | false

Parameters: This function accepts three parameters that are described below:

• string: It contains the content of a file that to be checked.
• flags: It contains one or disjunction of more Fileinfo constants.
• finfo: It contains a finfo instance that is returned by finfo_open() function.

Return Value: This function returns a textual description of the string argument, otherwise, it will return false.

Example 1: This example describes the finfo_buffer() function.

PHP

<?php
$finfo = new finfo(FILEINFO_MIME);
echo $finfo->buffer("./index.php") . "\n";
?>

Output:

text/plain; charset=us-ascii

Example 2: This example describes the finfo_buffer() function.

PHP

<?php
$finfo = new finfo(FILEINFO_MIME);
echo finfo_buffer($finfo,"./index.php") . "\n";
?>

Output:

text/plain; charset=us-ascii

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