- var_dump: documentation ( source)
- reset: documentation ( source)
- key: documentation ( source)
- next: documentation ( source)
- current: documentation ( source)
<?php
class MyIterator implements Iterator
{
private static $data;
private $var = array(1,2,3);
private $current;
private $rewind;
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 (isset($this->var[$name])) {
return $this->var[$name];
}
}
public function many()
{
if($this->rewind){
echo 'VAR2' . PHP_EOL;
self::$data = array(88,99,11);
}
return self::$data[$this->key];
}
public function manys()
{
if($this->rewind){
echo 'VAR' . PHP_EOL;
self::$data = array(55,66,77);
}
return self::$data[$this->key];
}
public function rewind()
{
self::$data = null;
$this->rewind = 1;
echo "rewinding\n";
reset($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";
if(! $var){
var_dump($var);
$this->rewind = 0;
}
return $var;
}
}
class foo extends MyIterator{
public function test(){
return $this->many();
}
public function test2(){
return $this->manys();
}
}
$it = new foo();
foreach ($it as $a => $b) {
echo PHP_EOL . $it->test() . PHP_EOL . PHP_EOL;
echo PHP_EOL . $it->test2() . PHP_EOL . PHP_EOL;
print "$a: $b\n";
}