PHP program to perform the string manipulation.

CODE:

<?php
$my_str = 'College GASC';

echo "My, $my_str!<br>";   

echo "<pre>My\tCollege!</pre><br>";

echo "Length of word is :".strlen($my_str)."<br>"."<br>";       

echo "Counting of words is :".str_word_count($my_str)."<br>"."<br>";

$my_str2='We all agreed; it was a magnificent evening. ';
echo "Replacing text:".str_replace("evening", "night", $my_str2)."<br>"."<br>";

$my_str3='You can';

echo strrev($my_str3)."<br>"."<br>";
?>

OUTPUT: