• 首页
  • vue
  • TypeScript
  • JavaScript
  • scss
  • css3
  • html5
  • php
  • MySQL
  • redis
  • jQuery
  • LimitIterator::getPosition()

    (PHP 5>=5.1.0,PHP 7)

    Return the current position

    说明

    publicLimitIterator::getPosition(void) : int

    Gets the current zero-based position of the innerIterator.

    参数

    此函数没有参数。

    返回值

    The current position.

    范例

    Example#1LimitIterator::getPosition()example

    <?php
    $fruits = array(
        'a' => 'apple',
        'b' => 'banana',
        'c' => 'cherry',
        'd' => 'damson',
        'e' => 'elderberry'
    );
    $array_it = new ArrayIterator($fruits);
    $limit_it = new LimitIterator($array_it, 2, 3);
    foreach ($limit_it as $item) {
        echo $limit_it->getPosition() . ' ' . $item . "\n";
    }
    ?>
    

    以上例程会输出:

    2 cherry
    3 damson
    4 elderberry
    

    参见

    • FilterIterator::key() Get the current key