5_string_function.php

<?php

 $name="Harry is a good boy";
 echo $name;
 echo "<br>";
 //show the length of the string.
	echo "The length of" . " my string is " . strlen($name);
 echo "<br>";
/* count the word it means harry  is   a   good   boy total (5 word)
 						    1	  2    3    4     5 */
 	echo str_word_count($name);
 echo "<br>";

 // reverse the string.
 	echo strrev($name);
 echo "<br>";

// search any string.
 	echo strpos($name,"is");
 echo "<br>";

 // replace any string with anyone. It means Harry = Rohan.
  	echo str_replace('Harry', 'Rohan', $name);
 echo "<br>";

 // repeat the string it means 2 = harry harry.
 	  	echo str_repeat($name, 2);
 echo "<br>";

 echo "<pre>";
 // rtrim means right space is removed.
 	echo rtrim("     This is a good boy     "); //you are the space in program then using pre tag you can do it  
 echo "<br>";

 // ltrim means left space is removed.
 echo "</pre>";
 	echo ltrim("     This is a good boy     ");


?>