Break a string into an array and return only one element in PHP

Description

The following code shows how to break a string into an array and return only one element.

Example

/*from  www  .j av a  2s  .c o  m*/
<?php
   $str = 'one,two,three,four';

   // zero limit
   print_r(explode(',',$str,0));

?>

The code above generates the following result.