Php/docs/multipleiterator.construct
MultipleIterator::__construct
(PHP 5 >= 5.3.0, PHP 7)
MultipleIterator::__construct — Constructs a new MultipleIterator
说明
public
MultipleIterator::__construct
([
int
$flags
= MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_NUMERIC
] )
Construct a new MultipleIterator.
参数
flags
The flags to set, according to the Flag Constants.
MultipleIterator::MIT_NEED_ALL
orMultipleIterator::MIT_NEED_ANY
MultipleIterator::MIT_KEYS_NUMERIC
orMultipleIterator::MIT_KEYS_ASSOC
Defaults to
MultipleIterator::MIT_NEED_ALL
|MultipleIterator::MIT_KEYS_NUMERIC
.
返回值
没有返回值。
范例
Example #1 Iterating a MultipleIterator
<?php$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] => )