(PHP 5 >= 5.3.0, PHP 7, PHP 8)
MultipleIterator::__construct — Constructs a new MultipleIterator
$flags
= MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_NUMERIC
)Construct a new MultipleIterator.
flagsThe flags to set, according to the Flag Constants.
MultipleIterator::MIT_NEED_ALL or MultipleIterator::MIT_NEED_ANY
MultipleIterator::MIT_KEYS_NUMERIC or MultipleIterator::MIT_KEYS_ASSOC
Defaults to MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_NUMERIC.
没有返回值。
Example #1 Iterating a MultipleIterator
<?php
$people = new ArrayIterator(array('John', 'Jane', 'Jack', 'Judy'));
$roles = new ArrayIterator(array('Developer', 'Scrum Master', 'Project Owner'));
$team = new MultipleIterator($flags);
$team->attachIterator($people, 'person');
$team->attachIterator($roles, 'role');
foreach ($team as $member) {
print_r($member);
}
?>
Output with $flags = MIT_NEED_ALL|MIT_KEYS_NUMERIC
Array
(
[0] => John
[1] => Developer
)
Array
(
[0] => Jane
[1] => Scrum Master
)
Array
(
[0] => Jack
[1] => Project Owner
)Output with $flags = MIT_NEED_ANY|MIT_KEYS_NUMERIC
Array
(
[0] => John
[1] => Developer
)
Array
(
[0] => Jane
[1] => Scrum Master
)
Array
(
[0] => Jack
[1] => Project Owner
)
Array
(
[0] => Judy
[1] =>
)Output with $flags = MIT_NEED_ALL|MIT_KEYS_ASSOC
Array
(
[person] => John
[role] => Developer
)
Array
(
[person] => Jane
[role] => Scrum Master
)
Array
(
[person] => Jack
[role] => Project Owner
)Output with $flags = MIT_NEED_ANY|MIT_KEYS_ASSOC
Array
(
[person] => John
[role] => Developer
)
Array
(
[person] => Jane
[role] => Scrum Master
)
Array
(
[person] => Jack
[role] => Project Owner
)
Array
(
[person] => Judy
[role] =>
)