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PHP bin2hex () function

PHP String Reference PHP String Reference

Examples

The "! Hello World" to hexadecimal values:

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

Running instance »

Definition and Usage

bin2hex () function to convert a string of ASCII characters to hexadecimal values. String can function by using pack () reconversion back.


grammar

bin2hex( string )

参数 描述
string 必需。规定要转换的字符串。

technical details

return value: Back to convert a string of hexadecimal values.
PHP version: 4+


More examples

Example 1

A string value from binary to hex and then converted back to:

<?php
$str = "Hello world!";
echo bin2hex($str) . "<br>";
echo pack("H*",bin2hex($str)) . "<br>";
?>

Running instance »


PHP String Reference PHP String Reference