(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 .
示例 #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] => )