- rtrim: documentation ( source)
- print_r: documentation ( source)
- explode: documentation ( source)
- array_walk: documentation ( source)
<?php
$string = 'bears, tigers, lions, sword-1,2-fish, penguins';
$explodedArray = explode(' ',$string);
array_walk($explodedArray, function(&$value, &$key) {
$value = rtrim($value,',');
});
print_r($explodedArray);