Iterator impliment php

<?php
class myIterator implements Iterator {
    private $position = 0;
    private $array = array(
        "firstelement",
        "secondelement",
        "lastelement",
    );  

    public function __construct() {
        $this->position = 0;
    }

    public function rewind() {
        var_dump(__METHOD__);
        $this->position = 0;
    }

    public function current() {
        var_dump(__METHOD__);
        return $this->array[$this->position];
    }

    public function key() {
        var_dump(__METHOD__);
        return $this->position;
    }

    public function next() {
        var_dump(__METHOD__);
        ++$this->position;
    }

    public function valid() {
        var_dump(__METHOD__);
        return isset($this->array[$this->position]);
    }
}

$it = new myIterator;

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

  
  
  // output
  
string(18) "myIterator::rewind"
string(17) "myIterator::valid"
string(19) "myIterator::current"
string(15) "myIterator::key"
int(0)
string(12) "firstelement"

string(16) "myIterator::next"
string(17) "myIterator::valid"
string(19) "myIterator::current"
string(15) "myIterator::key"
int(1)
string(13) "secondelement"

string(16) "myIterator::next"
string(17) "myIterator::valid"
string(19) "myIterator::current"
string(15) "myIterator::key"
int(2)
string(11) "lastelement"

string(16) "myIterator::next"
string(17) "myIterator::valid"

Source: php.net

Similar codes

0 vote387 views2 answers
Send html from datatable in laravel
PHP Laravel
1 vote320 views1 answer
Ffmpeg generate thumbnail in php
PHP
19 votes337 views4 answers
Php json_decode not working
PHP
5 votes318 views3 answers
'mix' is not recognized as an internal or external command
PHP
0 vote309 views1 answer
Php check if session is running
PHP
0 vote351 views1 answer
Php check if variable is resource
PHP
0 vote328 views2 answers
How to link a external modules using href in php
PHP
23 votes380 views6 answers
Php echo array
PHP
1 vote331 views2 answers
Php xml string
PHP
0 vote433 views1 answer
Ajouter du contenu personnalisé sous chaque article/publication WordPress
PHP Wordpress