<?php
echo strlen("Welcome");
echo"<br/>";
echo Str_word_count("Classmate");
echo"<br/>";
echo Strpos("Str","t");
echo"<br/>";
echo Str_replace("WELCOME","come","hello");
echo"<br/>";
echo Ucwords("india");
echo"<br/>";
echo Strtoupper("computer");
echo"<br/>";
echo Strtolower("COMPUTER");
echo"<br/>";
echo Strcmp("first","last");
echo"<br/>";
echo trim("savlon","lon");
echo"<br/>";
?>
output:
