(PHP 5, PHP 7, PHP 8)
ArrayObject::offsetGet — Returns the value at the specified index
keyThe index with the value.
The value at the specified index or null.
Produces an E_NOTICE error message when the specified
index does not exist.
示例 #1 ArrayObject::offsetGet() example
<?php
$arrayobj = new ArrayObject(array('zero', 7, 'example'=>'e.g.'));
var_dump($arrayobj->offsetGet(1));
var_dump($arrayobj->offsetGet('example'));
var_dump($arrayobj->offsetExists('notfound'));
?>
以上例程會(huì )輸出：
int(7) string(4) "e.g." bool(false)