IteratorAggregate(聚合式迭代器)接口

(PHP 5, PHP 7, PHP 8)

简?/h2>

创建外部迭代器的接口?

示例 #1 基本用法

<?php
class myData implements IteratorAggregate {
    public 
$property1 "Public property one";
    public 
$property2 "Public property two";
    public 
$property3 "Public property three";

    public function 
__construct() {
        
$this->property4 "last property";
    }

    public function 
getIterator() {
        return new 
ArrayIterator($this);
    }
}

$obj = new myData;

foreach(
$obj as $key => $value) {
    
var_dump($key$value);
    echo 
"\n";
}
?>

以上例程的输出类似于?/p>

string(9) "property1"
string(19) "Public property one"

string(9) "property2"
string(19) "Public property two"

string(9) "property3"
string(21) "Public property three"

string(9) "property4"
string(13) "last property"

目录

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