程序逻辑有有关问题，请帮忙

$arr = array(

	0 => array('id'=>12,'name'=>'NO.1'),

	1 => array('id'=>13,'name'=>'NO.2'),

);



$_check_id = 0;

if($arr) {

foreach($arr as $v){

?>





}

}?>

	$arr = array(

    0 => array('id'=>12,'name'=>'NO.1'),

    1 => array('id'=>13,'name'=>'NO.2'),

    2 => array('id'=>14,'name'=>'NO.3'),

    3 => array('id'=>15,'name'=>'NO.4'),

	);

	

	$_check_id = 14;

	$found = false;

	$htmls = array();

	if($arr) {

		foreach($arr as $v){

			$input_pre = <<
				
EOT;

			$input_post = <<
				/>{$v['name']}

EOT;

			if(!$found && $_check_id == $v['id']) {

				$found = true;

				$input_pre .= ' checked ';

			}

			$htmls[] = array($input_pre, $input_post);

		}

	}

	$htmlstr = '';

	foreach($htmls as $html) {

		if(!$found) {

			$html[0] .= ' checked ';

			$found = true;

		}

		$htmlstr .= implode('', $html);

	}

	echo $htmlstr;

$arr = array(

    0 => array('id'=>12,'name'=>'NO.1'),

    1 => array('id'=>13,'name'=>'NO.2'),

    2 => array('id'=>14,'name'=>'NO.3'),

);

 

$_check_id = 0;

if($arr) {

  foreach($arr as &$v) {

    if($_check_id == $v['id']) {

      $v['check'] = ' checked';

      $_check_id = -1;

    }

  }

  if($_check_id >=0) $arr[0]['check'] = ' checked';

  foreach($arr as $v){

?>

 />


}

}?>

foreach($arr as $key=>$v){

	if($key == $_check_id){

	//这儿是checked

	continue;

	}

......