How to hide name in php

How to hide names in php: 1. Create a PHP sample file; 2. Implement name hiding through the "mb_substr" and "str_repeat" functions, code such as "".

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

php How to hide name?

Code example:

<?php
$user_name = "李二虎";
echo mb_substr($user_name,0,1,&#39;utf-8&#39;).str_repeat("*",(strlen($user_name)/2-1));
?>

This code can hide the last two characters of the name.

Extension:

mb_substr() function returns a part of the string. We have learned the substr() function before. It only targets English characters. If you want to split Chinese characters, you need Use mb_substr().

Note: If the start parameter is negative and length is less than or equal to start, length is 0.

Syntax

mb_substr ( string $str , int $start [, int $length = NULL [, string $encoding = mb_internal_encoding() ]] ) : string

str_repeat() function repeats a string a specified number of times.

Grammar

str_repeat(string,repeat)

Recommended study: "PHP Video Tutorial"

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