Php 将多维数组信息插入数据库
这似乎是一个非常简单的解决方案……但我一直很难弄明白。我需要一个数组进入数据库。例如:Php 将多维数组信息插入数据库,php,mysql,sql,Php,Mysql,Sql,这似乎是一个非常简单的解决方案……但我一直很难弄明白。我需要一个数组进入数据库。例如: $usa = array( 'idaho' => array( county1 => array( 'pocatello', 'arimo', 'downey' ), county2 => array( 'bear',
$usa = array(
'idaho' => array(
county1 => array(
'pocatello', 'arimo', 'downey'
),
county2 => array(
'bear', 'cuprum', 'mesa'
)
'iowa' => array(
county1 => array(
'des moines', 'adel', 'desoto'
),
county2 => array(
'douglas', 'grant', 'jasper'
)
);
我尝试了这种插入数据库的方法:
foreach($usa as $state => $county){
foreach($county as $name => $city){
$s=$state;
$county_name = strtolower($name);
$city = strtolower($city);
$us = "INSERT INTO us
SET state='{$s}',county='{$county_name}',city='{$city}'
";
$us_result = mysql_query($us,$connection);
}
}
我认为问题在于foreach(将状态变量传递到第二个foreach循环)。我试过很多不同的方法。提前感谢您的帮助
***注意:当我删除插入的$s=$state变量和state='{$s}'部分时,一切都很好。我仍然无法让它插入状态您的插入查询不正确。 试试这个:
$us = "INSERT INTO us (state, county, city) VALUES ('" . mysql_real_escape_string ($s) . "', '" . mysql_real_escape_string ($county_name) . "', '" . mysql_real_escape_string ($city) . "')";
看来你又错过了一次机会:
foreach($county as $name => $cities) {
foreach ($cities as $city) {
....
有两个主要问题 首先,数组的分隔不正确,最好对县名称使用单引号或双引号,您还是将其称为字符串:
$usa = array(
'idaho' => array(
'county1'=>array(
'pocatello', 'arimo', 'downey'
),
'county2'=>array(
'bear', 'cuprum', 'mesa'
)),
'iowa' => array(
'county1'=>array(
'des moines', 'adel', 'desoto'
),
'county2'=>array(
'douglas', 'grant', 'jasper'
))
);
其次,还应该有一个foreach循环来解释城市名称:
foreach($usa as $state => $county){
foreach($county as $name => $city){
foreach ($city as $cityname) {
$s = $state;
$county_name = strtolower($name);
$city = strtolower($cityname);
$us = "INSERT INTO us SET state='{$s}',county='{$county_name}',city='{$city}'";
echo $us.'<br>';
}
}
}
foreach($state=>usa$county){
foreach($country as$name=>$city){
foreach($city作为$cityname){
$s=$state;
$county_name=strtolower($name);
$city=strtolower($cityname);
$us=“INSERT INTO us SET state='{$s}',country='{$country_name}',city='{$city}';
回声$us.“
”;
}
}
}
希望这有帮助 首先。正如@itsmeee所说,您还缺少了一个foreach,该foreach遍历了该县的一系列城市。除此之外,您的输入数组缺少两个闭合参数来包装每个状态的数据数组 如果你解决了这个问题,我会:
$us = "INSERT INTO us (state, county, city) VALUES ";
$values = array();
foreach($usa as $state => $county){
foreach($county as $name => $cities){
foreach($cities as $city){
$county_name = strtolower($name);
$city = strtolower($city);
$values[] = "('{$state}','{$county_name}','{$city}')";
}
}
}
$us .= join(',',$values);
$us_result = mysql_query($us,$connection);
这将构建插入字符串,并一次性完成所有插入操作。您也可以进行单独的插入,但对于数据集来说,这样小的插入一个大的插入更有效
祝你好运 +1,虽然你忽略了使用
mysql\u real\u escape\u string进行正确转义的重点,但我更希望提问者一次只学习一些相关的东西,因为他/她似乎是一个PHP程序员新手;如果你再也没有见过这个人,他会继续这样写他的问题;-)好吧,多亏了你,如果他能做到的话,他可能已经研究了什么是mysql\u real\u escape\u string。这是一个很好的提示,但这不是最大的问题:)