php get first 200 characters from string 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 last four digits php

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

Example 3: php nth characters from end of string

$rest = substr("abcdef", -3, 1); // returns 'd'