first case senstive php code example

Example 1: ucfirst

<?php
/* Convert the first character of "hello" to uppercase:  */
echo ucfirst("hello samy!");

//output : Hello samy!
?>

Example 2: strcasecmp php

<?php
echo strcasecmp("Hello world!","HELLO WoRLD!");
?>

<p>If this function returns 0, the two strings are equal.</p>