How to convert array to hexadecimal in php

Conversion method: 1. Use the implode() function to convert the array into a string. The connector between elements is a null character. The syntax is "implode($arr)" or "implode("",$arr) "; 2. Use the bin2hex() function to convert the string into a hexadecimal value, the syntax is "bin2hex (string)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In PHP, the array cannot be directly converted to Hexadecimal, but can be converted indirectly with the help of strings.

• First use the implode() function to convert the array into a string

• Then use the bin2hex() function to convert the string into hexadecimal System value

Implementation example:

<?php 
header("content-type:text/html;charset=utf-8");
$array = array(1,2,3,"a","Hello","World"); 
var_dump($array);       
$bin = implode("",$array);
echo "字符串：".$bin."<br>";
$hex = bin2hex($bin);
echo "十六进制值：".$hex."<br>";
?>

Description:

implode() function returns an array element The combined string. (The alias of the implode() function is also called the join() function.)

implode(separator,array)

Parameter	Description
separator	Optional. Specifies what is placed between array elements. Default is "" (empty string).
array	Required. Arrays to be combined into strings.

#bin2hex() function converts a string of ASCII characters into a hexadecimal value.

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