php 如何从数组中取出值？

Question

Array
(
[0] => Array
(
[id] => 336260
[userid] => 18115663
[username] =>
[ref0_id] => 123
[ref1_id] => 123
[ref2_id] => 123
[ref0_name] =>
[ref1_name] =>
[ref2_name] =>
[pay_serial] => Dv15127026224230MUMjRa
[pay_channel_serial] => 4200000004201712089808399098
[pay_channel] => 7
[pay_amount] => 30
[pay_time] => 1512702630
[pay_ip] => 117.136.81.92
[ext] => 0
[account] => 0
[pay_source] => 1
[is_hf_account] => 0
[bookid] => 65
[staff_money] =>
[ref_money] =>
[site_money] => 30
)
)
比如只输出Dv15127026224230MUMjRa
要怎么写？

Answer 1

echo $arr[0]['pay_serial'] 

Answer 2

$array = Array
(
[0] => Array
(
[id] => 336260
[userid] => 18115663
[username] =>
[ref0_id] => 123
[ref1_id] => 123
[ref2_id] => 123
[ref0_name] =>
[ref1_name] =>
[ref2_name] =>
[pay_serial] => Dv15127026224230MUMjRa
[pay_channel_serial] => 4200000004201712089808399098
[pay_channel] => 7
[pay_amount] => 30
[pay_time] => 1512702630
[pay_ip] => 117.136.81.92
[ext] => 0
[account] => 0
[pay_source] => 1
[is_hf_account] => 0
[bookid] => 65
[staff_money] =>
[ref_money] =>
[site_money] => 30
)
)echo $array[0]['pay_serial'];

Answer 3

echo $array[0]['pay_serial'];

Answer 4

不错学习了，我只是路边人，ECHO  啥，一步U走

Answer 5

//只有一个数组
if($array[0]['pay_serial']){
echo $array[0]['pay_serial'];
}//一堆数组
foreach($array as $val){
   if($array['pay_serial']){
      echo $array['pay_serial'];
   }
}

Answer 6

//只有一组数组
$pay_serial = isset($array[0]['pay_serial']) ? $array[0]['pay_serial'] : null;
var_dump($pay_serial);
 
//多组数组
foreach($array as $val){
   if(isset($array['pay_serial'])){
      var_dump($array['pay_serial']);
   }
}

Answer 7

//只有一组数组
$pay_serial = isset($array[0]['pay_serial']) ? $array[0]['pay_serial'] : null;
var_dump($pay_serial);
 
//多组数组
foreach($array as $val){
   if(isset($array['pay_serial'])){
      var_dump($array['pay_serial']);
   }
}