PHP chop() Function

The chop() function removes spaces or other predefined characters from the right end of a string.

chop(string,character)

• string - (Required) Specifies the string to check.
• character - (Optional) Characters to remove from the string.

  	If the parameter is empty, the following characters are removed. 
  	“\0” – NULL 
  	“\t” – tab 
  	“\n” – line break 
  	“\x0B” – vertical tab 
  	“\r” – carriage return 
  	" " - normal whitespace
  

<?php
echo "Hello World\t\t";
echo "Hello World";
?>

Hello World Hello World