PHP Program to replace a word in a string using str_ireplace()

<?php
    $str = 'sayesha';
    
    // message to be printed
    $newstr = 'welcome ' . $str . ' to learn about PHP language. We are delighted to have you ' . $str;
    
    // printing message
    echo ($newstr . "\n");
    
    // changing the name
    $str1 = 'Sayesha';
    echo str_ireplace($str, $str1, $newstr);
?>

Output

welcome sayesha to learn about PHP language. We are delighted to have you sayesha
welcome Sayesha to learn about PHP language. We are delighted to have you Sayesha