- reset: documentation ( source)
- key: documentation ( source)
- next: documentation ( source)
- current: documentation ( source)
<?php
class MyIterator implements Iterator
{
private $var = array(1,2,3);
private $current;
private $key;
public function __construct($array = null)
{
if (is_array($array)) {
$this->var = $array;
}
}
public function __set($name, $value)
{
return $this->var[$name] = $value;
}
public function __get($name)
{
if ($this->var[$name]) {
return $this->var[$name];
}
if ($name == 'test') {
$class = get_called_class();
return $this->var[$name] = (new $class())->$name();
}
}
public function many()
{
$a = array(88,99,11);
return $a[$this->key];
}
public function rewind()
{
echo "rewinding\n";
reset($this->var);
}
public function current()
{
$var = current($this->var);
$this->current = $var;
echo "current: $var\n";
return $var;
}
public function key()
{
$var = key($this->var);
$this->key = $var;
echo "key: $var\n";
return $var;
}
public function next()
{
$var = next($this->var);
echo "next: $var\n";
return $var;
}
public function valid()
{
$key = key($this->var);
$var = ($key !== NULL && $key !== FALSE);
echo "valid: $var\n";
return $var;
}
}
class foo extends MyIterator{
public function test(){
return $this->many();
}
}
$it = new foo();
foreach ($it as $a => $b) {
echo PHP_EOL . $it->test . PHP_EOL . PHP_EOL;
print "$a: $b\n";
}