How to use hexdec() Function In PHP

Using base_convert() Function

The hexdec() function converts a hexadecimal number to a decimal number. This function converts numbers that are too large to fit into the integer type, larger values are returned as a float in that case. If hexdec() encounters any non-hexadecimal characters, it ignores them.

Syntax:

hexdec( $value )

Example:

PHP

<?php 
  
function hexToDec($hex) { 
    return hexdec($hex); 
} 
  
$hexNum = '1A'; 
$decimalNum = hexToDec($hexNum); 
  
echo "Decimal Value: " . $decimalNum; 
  
?>

Output

Decimal Value: 26

Hexadecimal to Decimal Conversion in PHP

Given a Hexadecimal Number, and the task is to convert Hexadecimal to a Decimal Number using PHP.

Examples:

Input: hexNum = '1A'
Output: 

Input: hexNum = '634E24'
Output: 6508068

There are three different methods to convert Hexadecimal to Decimal number, these are:

Table of Content

Using hexdec() Function
Using base_convert() Function
Using for Loop

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Using base_convert() Function

How to use hexdec() Function In PHP

PHP

Hexadecimal to Decimal Conversion in PHP

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