Question

我有两个数组$ fuel和$ hours，数据量相同，我想在数据库中同时插入它们。

这就是我所拥有的：

$fuellength = count($fuel);
$f = 0;             

for($f=0;$f<$fuellength;$f++){ 
if ($fuel[$f] > 0){
    if (
    mysql_query("INSERT INTO grafiku (vehicle_plate, fuel_level, date_hour) VALUES (".$userid.", ".$hours[$f].",     '".$fuel[$f]."')");
        ) 
        echo "data has been inserted"; 
     else 
        echo "data has not been inserted";
 } //end if 
}//end for

它什么都没有给我看！对数组使用'for'循环是否正确？或者我应该只使用'foreach'？如果是这样，我怎么能在同一时间循环抛出两个数组？

提前致谢！最好的问候

Answer 1

如果你的代码完全是这样的话，你将看不到任何东西，因为你有一个致命的php错误。您有一个ELSE语句，而没有起始IF语句。从IF语句中删除评论，它应该会再次运行。

Answer 2

$fuellength = count($fuel);
$f = 0;             

for($f=0;$f<$fuellength;$f++){ 
if ($fuel[$f] > 0){
    $qryStr = "INSERT INTO grafiku (vehicle_plate, fuel_level, date_hour) VALUES (".$userid.", ".$hours[$f].",     '".$fuel[$f]."')";
    echo $qryStr."/br"; 
 } 
}

检查您是否收到查询和值。

Answer 3

假设您已与MySQL服务器建立连接：

$cn = mysql_connect("hostname", "username", "password");

假设您选择了数据库：

mysql_select_db("databasename", $cn);

你的逻辑是正确的。但是您的SQL插入顺序与您的字段不匹配。您正尝试将$fuel[$f]数据插入date_hour字段。

$f = 0;
$added = 0; 
$noAdded = 0;             

while($f < count($fuel))
{ 
    if ($fuel[$f] > 0) 
    { 
        if(mysql_query("INSERT INTO grafiku 
                   (vehicle_plate,   fuel_level,    date_hour) 
            VALUES (".$userid.",   ".$fuel[$f].", '".$hours[$f]."')"
        ))
            $added++; 
        else 
            $noAdded++;
    }

    $f++;
}

//Then you can display additional information after inserting is done. 

echo $added . " data has been added to table.";
echo "<br />";
echo $noAdded . " data could not be added to table.";

Answer 4

您的代码中存在错误，解析错误：语法错误，＆lt;中的意外T_ELSE文件名＆gt;在第12行

<?php

   $fuellength = count($fuel);
   $f = 0;             

  for($f=0;$f<$fuellength;$f++){ 
  if ($fuel[$f] > 0){
  if (mysql_query("INSERT INTO grafiku (vehicle_plate, fuel_level, date_hour) VALUES     (".$userid.", ".$hours[$f].",     '".$fuel[$f]."')")) 
    echo "data has been inserted"; 
     else 
    echo "data has not been inserted";
 } //end if 
 }//end for
?>

在数据库中同时插入两个数据数组

4 个答案: