How to implement php to intercept the last few digits of a string

php method to intercept the last four digits of a string: first create a PHP sample file; then intercept the last four digits of the specified string through the "substr($str_bh,-4);" method; and finally output it through echo Just intercept the results.

Recommendation: "PHP Video Tutorial"

Example:

After PHP intercepts the string Four digits

$str_bh='123456789';
$abc=substr($str_bh,-4);
echo $abc;

Output result: 6789

<?php
echo substr("Hello world!",6,5);
?>

Result: world

The above is the detailed content of How to implement php to intercept the last few digits of a string. For more information, please follow other related articles on the PHP Chinese website!