Question

我想从数据库表中获取数组中的键和值，我需要将它添加到数组中。那么如何将其设置为数组呢？如果我使用array_push（）那么它将从0开始索引，我需要从表中获取的数组索引。

我的表名为 array_val

键值
k1 val1
k2 val2

Answer 1

如果您使用的是MySQLi，我认为您正在寻找mysqli_fetch_assoc()的内容。

Answer 2

$array_val = array();

$results = mysql_fetch_array($query);
foreach($results as $key => $val){
    $array_val[$key] = $val

}

Answer 3

另一种解决方案

# dummy data
df1 <- read.table(text = "
From         To
1       June     August
2    January   December
3 05/01/2013 10/30/2013
4       July   November
5 06/17/2013 10/14/2013
6 05/04/2013 11/23/2013", header = TRUE, as.is = TRUE)

# custom function
myFun <- function(x, dummyDay = "01", dummyYear = "2013"){
  require(lubridate)

  x <- ifelse(substr(x, 1, 3) %in% month.abb,
              paste(match(substr(x, 1, 3), month.abb),
                    dummyDay,
                    dummyYear, sep = "/"), x)
  #return date
  mdy(x)
}

res <- data.frame(lapply(df1, myFun))

res
#         From         To
# 1 2013-06-01 2013-08-01
# 2 2013-01-01 2013-12-01
# 3 2013-05-01 2013-10-30
# 4 2013-07-01 2013-11-01
# 5 2013-06-17 2013-10-14
# 6 2013-05-04 2013-11-23

键和值是您的表格字段。表格是： array_val

Answer 4

低于代码可以帮助你

简单地说，使用while循环并从db记录中创建数组元素。

$arr = array();

$sql = "SELECT key,value FROM <tablename>";
$result = $conn->query($sql);

if ($result->num_rows > 0) {

    while($row = $result->fetch_assoc()) {

        $arr[$row['key']] =  $row['value'];
    }
}

在php中定义数组键和值

4 个答案: