htmlspecialchars_decode in PHP

PHP htmlspecialchars_decode() function is the opposite of htmlspecialchars().
The PHP htmlspecialchars_decode() function is utilized to change over some predefined HTML entities are converted to characters .
HTML entities that will be decoded are:

• & becomes & (ampersand)
• " becomes " (double quote)
• ' becomes ' (single quote)
• < becomes < (less than)
• > becomes > (greater than)

Syntax:

htmlspecialchars_decode (string,quotestyle,character-set)

Parameters description:

string : Required. Defines the input string .
quotestyle : Optional. Determine whether to convert  single and double quotes.
The available quote styles are:

• ENT_COMPAT - Default. Encodes only double quotes
• ENT_QUOTES - Encodes double and single quotes
• ENT_NOQUOTES - Does not encode any quotes

Example:

<?php 
$input_str = "Sam &amp; &#039;Jack&#039;";
echo htmlspecialchars_decode($input_str);
echo "<br />";
echo htmlspecialchars_decode($input_str, ENT_QOUTES);
echo "<br />";
echo htmlspecialchars_decode($input_str, ENT_NOQOUTES);
?>

Output:

Sam & 'Jack' 
Sam & 'Jack' 
Sam & 'Jack'