比较数组,并显示PHP之间的差异
我花了很长时间研究如何在数组之间执行此操作,但我无法在返回这些结果时获得PHP中的算法 数组#1: 数组#2: 我希望以数组格式显示此结果:比较数组,并显示PHP之间的差异,php,arrays,Php,Arrays,我花了很长时间研究如何在数组之间执行此操作,但我无法在返回这些结果时获得PHP中的算法 数组#1: 数组#2: 我希望以数组格式显示此结果: Array FINAL_RESULT ( [1] => Array ( [item_code] => FO1321 [item_quantity] => -4 [item_sellprice] => 22.40 [
Array FINAL_RESULT
(
[1] => Array
(
[item_code] => FO1321
[item_quantity] => -4
[item_sellprice] => 22.40
[taken] => 0
)
[2] => Array
(
[item_code] => HE240
[item_quantity] => -1
[item_sellprice] => 22.40
[taken] => 0
)
[3] => Array
(
[item_code] => EL55
[item_quantity] => +1
[item_sellprice] => 8.00
[taken] => 0
)
)
我这样做是为了比较正在修改的现有法案。
我需要设置它们之间的差异,然后在DB中进行更改。用于计算结果数组值的数学对我来说没有意义(我怀疑您可能在帖子中输入了错误的数据) 如果我是你,我会使用
item\u code
作为数组键创建关联数组,这样当你进行比较时,你可以当场更新值
Array DB_ITEMS
(
[FO1321] => Array
(
[item_code] => FO1321
[item_quantity] => 5
[item_sellprice] => 18.00
[found] => 0
)
[HE240] => Array
(
[item_code] => HE240
[item_quantity] => 1
[item_sellprice] => 22.40
[found] => 0
)
)
Array BUY_ITEMS
(
[FO1321] => Array
(
[item_code] => FO1321
[item_quantity] => 1
[item_sellprice] => 18.00
[taken] => 0
)
[EL55] => Array
(
[item_code] => EL55
[item_quantity] => 1
[item_sellprice] => 8.00
[taken] => 0
)
)
现在,您可以单步执行buy items数组并更新db items数组(未测试):
用于计算结果数组值的数学对我来说没有意义(我怀疑您可能在帖子中输入了错误的数据) 如果我是你,我会使用
item\u code
作为数组键创建关联数组,这样当你进行比较时,你可以当场更新值
Array DB_ITEMS
(
[FO1321] => Array
(
[item_code] => FO1321
[item_quantity] => 5
[item_sellprice] => 18.00
[found] => 0
)
[HE240] => Array
(
[item_code] => HE240
[item_quantity] => 1
[item_sellprice] => 22.40
[found] => 0
)
)
Array BUY_ITEMS
(
[FO1321] => Array
(
[item_code] => FO1321
[item_quantity] => 1
[item_sellprice] => 18.00
[taken] => 0
)
[EL55] => Array
(
[item_code] => EL55
[item_quantity] => 1
[item_sellprice] => 8.00
[taken] => 0
)
)
现在,您可以单步执行buy items数组并更新db items数组(未测试):
看看它似乎正是您想要的看看它似乎正是您想要的因为您没有提供太多逻辑(仅针对数量) 结果:
array(3) {
["FO1321"]=>
array(4) {
["item_code"]=>
string(6) "FO1321"
["item_quantity"]=>
int(-4)
["item_sellprice"]=>
int(18)
["taken"]=>
int(0)
}
["EL55"]=>
array(4) {
["item_code"]=>
string(4) "EL55"
["item_quantity"]=>
int(1)
["item_sellprice"]=>
int(8)
["taken"]=>
int(0)
}
["HE240"]=>
array(4) {
["item_code"]=>
string(5) "HE240"
["item_quantity"]=>
int(-1)
["item_sellprice"]=>
float(22.4)
["taken"]=>
int(0)
}
}
由于您没有提供太多的逻辑(仅针对数量) 结果:
array(3) {
["FO1321"]=>
array(4) {
["item_code"]=>
string(6) "FO1321"
["item_quantity"]=>
int(-4)
["item_sellprice"]=>
int(18)
["taken"]=>
int(0)
}
["EL55"]=>
array(4) {
["item_code"]=>
string(4) "EL55"
["item_quantity"]=>
int(1)
["item_sellprice"]=>
int(8)
["taken"]=>
int(0)
}
["HE240"]=>
array(4) {
["item_code"]=>
string(5) "HE240"
["item_quantity"]=>
int(-1)
["item_sellprice"]=>
float(22.4)
["taken"]=>
int(0)
}
}
有没有这样做的想法?我脑子都碎了,在想怎么做(解释FO1321:[item_sellprice]=>22.40的逻辑。如果不是打字错误,当然。有什么想法吗?),我在想该怎么做!:(解释FO1321:[item_sellprice]=>22.40的逻辑。如果不是打字错误,当然。
$DB_ITEMS = array(
array(
'item_code' => 'FO1321',
'item_quantity' => 5,
'item_sellprice' => 18,
'found' => 0
),
array(
'item_code' => 'HE240',
'item_quantity' => 1,
'item_sellprice' => 22.4,
'found' => 0
)
);
$BUY_ITEMS = array(
array(
'item_code' => 'FO1321',
'item_quantity' => 1,
'item_sellprice' => 18,
'taken' => 0
),
array(
'item_code' => 'EL55',
'item_quantity' => 1,
'item_sellprice' => 8,
'taken' => 0
)
);
// fast fix
$db = array(); $buy = array();
foreach($DB_ITEMS as $item)
$db[$item['item_code']] = $item;
foreach($BUY_ITEMS as $item)
$buy[$item['item_code']] = $item;
unset($DB_ITEMS, $BUY_ITEMS);
// now deal with arrays
foreach($db as $code=>$item)
if (array_key_exists($code, $buy))
$buy[$code]['item_quantity'] -= $item['item_quantity'];
else
{
$buy[$code] = $item;
$buy[$code]['item_quantity'] =- $item['item_quantity'];
$buy[$code]['taken'] = $buy[$code]['found'];
unset($buy[$code]['found']);
}
// output result
var_dump($buy);
array(3) {
["FO1321"]=>
array(4) {
["item_code"]=>
string(6) "FO1321"
["item_quantity"]=>
int(-4)
["item_sellprice"]=>
int(18)
["taken"]=>
int(0)
}
["EL55"]=>
array(4) {
["item_code"]=>
string(4) "EL55"
["item_quantity"]=>
int(1)
["item_sellprice"]=>
int(8)
["taken"]=>
int(0)
}
["HE240"]=>
array(4) {
["item_code"]=>
string(5) "HE240"
["item_quantity"]=>
int(-1)
["item_sellprice"]=>
float(22.4)
["taken"]=>
int(0)
}
}