How to convert data to hexadecimal in php

Conversion method: 1. Use dechex() to convert decimal to hexadecimal, the syntax is "dechex (decimal value)"; 2. Use base_convert(), the syntax is "bindec(decimal value, 10 ,16)"; 3. Use bin2hex(), the syntax is "bin2hex (string)".

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

php converts data Is hexadecimal

1. Use the dechex() function - you can convert decimal to hexadecimal

dechex (decimal value) can convert decimal numbers into hexadecimal numbers.

<?php
echo dechex("30") . "<br>";
echo dechex("10") . "<br>";
echo dechex("1587") . "<br>";
echo dechex("70");
?>

Output result:

1e
a
633
46

2. Use the base_convert() function--to convert decimal to hexadecimal

base_convert() Function converts numbers between arbitrary bases.

Set "bindec(decimal value, 10, 16)" to convert decimal to hexadecimal.

<?php
echo base_convert("30", 10, 16) . "<br>";
echo base_convert("10", 10, 16) . "<br>";
echo base_convert("1587", 10, 16) . "<br>";
echo base_convert("70", 10, 16);
?>

Output result:

3. Use the bin2hex() function--convert the string to hexadecimal

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

<?php
$str = bin2hex("Hello World!");
echo($str);
?>

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