soundex()
The soundex() function calculates the soundex key of a string. A soundex key is a four character long alphanumeric strings that represents English pronunciation of a word. The soundex() function can be used for spelling applications.
<?php $str= “hello”; Echo soundex($str); ?>
metaphone()
the metaphone() function calculates the metaphone key of a string. A metaphone key represents how a string sounds if pronounced by an English person. This function can also be used for spelling applications.
<?php echo metaphone(“world”); ?>
