如何用一个值检索所有对象数组? [英] how to retrive all object array with one value?
问题描述
这个问题是对这个的跟进对于我的后续问题，我在页面上也有这个对象:
This question is a follow up from this Now for my follow up question I also have this object on page:
Array
(
[registrants] => Array
(
[0] => Registrant Object
(
[title] => D C
[link] => **********
[id] => ***************
[updated] => 2013-03-06T12:11:49-05:00
[lastName] => C
[firstName] => D
[email] => *********
[personalInformation] => PersonalInformation Object
(
[cellPhone] =>
[label] =>
[addr1] =>
[addr2] =>
[addr3] =>
[city] =>
[state] =>
[postalCode] =>
[province] =>
[country] =>
[phone] =>
)
[businessInformation] => BusinessInformation Object
(
[fax] =>
[website] =>
[blog] =>
[company] =>
[jobTitle] =>
[department] =>
[label] =>
[addr1] =>
[addr2] =>
[addr3] =>
[city] =>
[state] =>
[postalCode] =>
[province] =>
[country] =>
[phone] =>
)
[customInformation1] => Array
(
)
[customInformation2] => Array
(
)
[registrationStatus] => REGISTERED
[registrationDate] => 2013-03-06T12:11:49-05:00
[guestCount] => 0
[paymentStatus] => NA
[orderAmount] =>
[currencyType] =>
[paymentType] =>
[costs] => Array
(
)
)
[1] => Registrant Object
(
[title] => Test Test
[link] => ****
[id] => *************
[updated] => 2013-03-06T12:47:47-05:00
[lastName] => Test
[firstName] => Test
[email] => ***************
[personalInformation] => PersonalInformation Object
(
[cellPhone] =>
[label] =>
[addr1] =>
[addr2] =>
[addr3] =>
[city] =>
[state] =>
[postalCode] =>
[province] =>
[country] =>
[phone] =>
)
[businessInformation] => BusinessInformation Object
(
[fax] =>
[website] =>
[blog] =>
[company] =>
[jobTitle] =>
[department] =>
[label] =>
[addr1] =>
[addr2] =>
[addr3] =>
[city] =>
[state] =>
[postalCode] =>
[province] =>
[country] =>
[phone] =>
)
[customInformation1] => Array
(
)
[customInformation2] => Array
(
)
[registrationStatus] => REGISTERED
[registrationDate] => 2013-03-06T12:47:47-05:00
[guestCount] => 0
[paymentStatus] => NA
[orderAmount] =>
[currencyType] =>
[paymentType] =>
[costs] => Array
(
)
)
)
[nextLink] =>
)
所以按照相同的理论，我正在检索这样的值:
So following the same theory I am retriving the values like this:
<?php echo $Registrant->lastName; echo $Registrant->firstName; echo $Registrant->email; ?>
但这只会从 [0] => 注册对象中检索第一个姓氏和名字，而不是从 1 => Registrant Object 如何获取所有名字和姓氏?感谢大家的兴趣和时间.亲切的问候克里斯
but this only retrieves the first lastname and firstname from [0] => Registrant Object not from 1 => Registrant Object how to i get all of the first names and last names? Thank everyone for there interest and there time. Kind regards Chris
推荐答案
比其他答案更深入地解释您的场景.
To explain your scenario a bit further than other answers.
这里有一组(注册人)对象.这实际上是一个关联数组(与所有 PHP 数组一样)，索引范围为 0 - 1.
You have an array of (Registrant) objects here. This is actually an associative array (as all PHP arrays) with indices from 0 - 1.
$registrantObjects[0] // would give first Registrant object
$registrantObjects[1] // would give second Registrant object
您可以同时访问它们.但是如果你想迭代数组(即遍历所有元素并对每个元素都做同样的事情)，你应该使用循环.对于这个用例，PHP 有一个很好的 foreach 循环:
You can access them both. But if you want to iterate the array (i.e. going over all elements and do the same for each one), you should use a loop. PHP has a nice foreach loop for this use case:
foreach ($registrantObjects as $registrant) {
// $registrant is a Registrant object here
echo $registrant->lastName;
}
你也可以试试这个:
foreach ($registrantObjects as $index => $registrant) {
// $registrant is a also Registrant object here
// But we have a variable $index, too. It represents the current 'key'
// We have a normal (numbered) array thus the keys are [0..1]
echo $registrant->lastName;
}
并且两个循环都等于这个 for 循环:
And both loops are equal to this for loop:
for ($i = 0, $len = count($registrantObjects); $i < $len; $i++) {
// $registrantObjects[$i] gives a Registrant object
}
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