explode_min.php

function explode_min($string, $minlen ){
	$subs = explode(" ", $string );
	$arrfinal = array();

	foreach($subs  as  $tok ){
		$len_tok = strlen($tok);
		if ( $len_tok >= $minlen ) {
			array_push( $arrfinal , $tok  );
		}
	}
	return $arrfinal;
}