how to get specific character from string in php code example

Example 1: php get first 5 characters of string

$result = substr("Hello How are you", 0, 5); //first 5 chars "Hello"

Example 2: take 10 character from string using php

$return_string = substr("Hi i am returning first 10 characters.", 0, 10);
Output:
"Hi i am re"

Example 3: get specific word from string php

$myString = "input/name/something";

$strArray = explode('/',$myString);
$name = $strArray[1];
$something = $strArray[2];