In PHP programming, it is often necessary to process and operate strings. One of the common needs is to get a substring based on a specified position and length. This article will introduce a simple and efficient method to achieve this goal.
In PHP, we can use built-in string functions substr()to get substrings. This function accepts three parameters: original string, starting position, and length. Here is substr()sample code for using a function to get a substring:
<?php
$str = "Hello, World!";
$substring = substr($str, 7, 5);