数组计数基于它出现的数量

Question

我是PHP的新手。

我有一个mysqli_fetch_array，在while循环中看起来像这样“

   array(7) {
  ["ID"]=>
  string(32) "00000000000000000000000000000001"
  ["NAME"]=>
  string(5) "admin"
  ["PRODUCT"]=>
  string(32) "Ps4"
}
array(7) {
  ["ID"]=>
  string(32) "00000000000000000000000000000001"
  ["NAME"]=>
  string(5) "mike"
  ["PRODUCT"]=>
  string(32) "Iphone"
}
array(7) {
  ["ID"]=>
  string(32) "00000000000000000000000000000001"
  ["NAME"]=>
  string(5) "mike"
  ["PRODUCT"]=>
  string(32) "Imac"
}
array(7) {
  ["ID"]=>
  string(32) "00000000000000000000000000000001"
  ["NAME"]=>
  string(5) "mike"
  ["PRODUCT"]=>
  string(32) "LCD Monitor"
}

我想计算admin和mike在循环中出现的次数：到目前为止我知道如何循环：

while($row    = mysqli_fetch_assoc($result))
    {
//I don't know what to do next here:
}

Answer 1

试试这个：

echo=FALSE

Answer 2

您应该从数据库中询问此信息。

像这样的查询可以做

SELECT NAME, count(1) cnt FROM table GROUP BY NAME

这里所有其他答案都因效率低下而尖叫。

Answer 3

$count = array();
while( $row = mysqli_fetch_assoc($result) ) {
    $count[$row['NAME']] = isset( $count[$row['NAME']] ) ? $count[$row['NAME']] + 1 : 1;
}
var_dump($count);