Why we use trim() Function in php ?

The trim() function mainly use for removes the spaces from the beginning and the end of the string. trim() function will divest and control characters such as :

" " an ordinary space.

"\t" a tab.

"\n" a new line

"\r" a carriage return.

You can see below example of trim() function.

  <?php
      $TitleNamae = "Jurasic World!";
      //here $TitleNamae variable 

      echo $TitleNamae . "<br>";
      //echo  full string
      echo trim($TitleNamae,"Jud!");
      //here call trim() to remove beginning and the end of the string 
      //Jurasic World!( "Ju" in "Jurasic" and "d!" in "World!") 
      ?>

So when we will echo the output then,

Output will come

  Jurasic World!
  rasic Worl