splitJoin.php

<pre>
<?php 
$string = 'vrcec,wrcwercr,cref43e3d,c*&^U,efrwe';
echo $string;
echo "<br>";
$stuff = explode( ',' , $string ); 
print_r($stuff);

foreach ($stuff as $key => $value){
	$cgars = str_split( $string );
	foreach ($cgars as $key => $char) {
		if (preg_match("/\w/", $char)) {
			$cgars[$key] = $char;
		} else {
			$cgars[$key] = '';
		}
		
	}
	$stuff[$key] = implode( '' , $cgars );
}
echo "<br>";
print_r($stuff);

?>
</pre>