reducing the length of paragraph in php code example

Example 1: reducing the length of paragraph in php

$firstStringCharacter = substr("hello", 0, 1);

Example 2: reducing the length of paragraph in php

$newstring = substr($dynamicstring, -7);

Example 3: reducing the length of paragraph in php

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