我有重复的语句，需要帮助来简化或组合语句，它们都有相似的值，范围从Jan-Dac和项目（本例中的sales change to Division category，sales change to ncvat）变化到32个不同的类别，每个组都有不同的提交值
if(isset($_POST['submit1'])){
$xml->sales->jan = $_POST['jan'];
file_put_contents("2020/data.xml", $xml->asXML());
}
...................................
...................................
if(isset($_POST['submit1'])){
$xml->sales->dec = $_POST['dec'];
file_put_contents("2020/data.xml", $xml->asXML());
}
那我有
if(isset($_POST['submit2'])){
$xml->ncvat->jan = $_POST['jan'];
file_put_contents("2020/data.xml", $xml->asXML());
}
...................................
...................................
if(isset($_POST['submit2'])){
$xml->ncvat->dec = $_POST['dec'];
file_put_contents("2020/data.xml", $xml->asXML());
}
因此它对32个不同的表单进行提交操作
我会做这样的事:
$months = [
'jan',
'dec',
...
];
$numberOfIterations = 32;
for ($i = 1 ; $i <= $numberOfIterations ; $i++) {
if (isset($_POST["submit{$i}"])) {
foreach ($months as $month) {
$xml->ncvat->$month = $_POST[$month];
file_put_contents("2020/data.xml", $xml->asXML());
}
}
}
您可以通过例如在表单中设置一个“隐藏”字段来更改“NCVAT”。 如:
<input type="hidden" name="type" value="ncvat">
后来呢:
$months = [
'jan',
'dec',
...
];
$numberOfIterations = 32;
for ($i = 1 ; $i <= $numberOfIterations ; $i++) {
if (isset($_POST["submit{$i}"])) {
$type = $_POST['type'];
foreach ($months as $month) {
$xml->$type->$month = $_POST[$month];
file_put_contents("2020/data.xml", $xml->asXML());
}
}
}
通常当你有很多重复的任务时，循环是你最好的选择。 在这种情况下，我认为2个循环将解决您的问题。
//count of `submit` values to check for
$submission_count = 32;
//list of months
$months = ['jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', 'dec'];
//loop for each `submit` value (e.g 1 through `$submission_count`)
for ($sub = 1; $sub <= $submission_count; $sub++) {
//set up your `$item` (e.g "sales", "ncvat")
switch($sub) {
case 1:
$item = 'sales';
break;
case 2:
case 3:
case 4:
//etc
$item = 'ncvat';
break;
}
//check if submit value exists for current loop (e.g $_POST['submit1'])
if(isset($_POST["submit{$sub}"])) {
//loop each month
foreach($months as $month) {
//update xml for current month in current submission loop
$xml->{$item}->{$month} = $_POST[$month];
file_put_contents("2020/data.xml", $xml->asXML());
}
}
}
