How to replace the mobile phone number in the document in php

How to replace the mobile phone number in the document in php: 1. Replace by substr string interception method; 2. Replace the substring of the string by substr_replace.

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

How to replace the mobile phone number in the document with php?

php Several ways to replace mobile phone numbers with asterisks*

In php front-end development, we sometimes need to replace certain digits in a mobile phone number with asterisks Instead, this can protect the customer's basic information. The following are the two methods used. If necessary, you can take a look at

1.substr string interception method

$mobile = '18310000000';
$newMobile1 = substr($mobile, 0, 5).'****'.substr($mobile, 9);
echo $newMobile1.&#39;<br/>&#39;;

2.substr_replace replacement character Substring of string

$newMobile2 = substr_replace($mobile, '****',3, 4);
echo $newMobile2.&#39;<br/>&#39;;

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