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(PHP 5 >= 5.3.0)
SplObjectStorage::getInfo — Returns the data associated with the current iterator entry
Returns the data, or info, associated with the object pointed by the current iterator position.
此函数没有参数。
The data associated with the current iterator position.
Example #1 SplObjectStorage::getInfo() example
<?php
$s = new SplObjectStorage ();
$o1 = new StdClass ;
$o2 = new StdClass ;
$s -> attach ( $o1 , "d1" );
$s -> attach ( $o2 , "d2" );
$s -> rewind ();
while( $s -> valid ()) {
$index = $s -> key ();
$object = $s -> current (); // similar to current($s)
$data = $s -> getInfo ();
var_dump ( $object );
var_dump ( $data );
$s -> next ();
}
?>
以上例程的输出类似于:
object(stdClass)#2 (0) { } string(2) "d1" object(stdClass)#3 (0) { } string(2) "d2"
[#1] Ye Wang [2010-09-27 11:53:07]
This method, SplObjectStorage::getInfo() does NOT exist on PHP 5.2.13.
However, PHP 5.3.2 and above does have it. To find out yourself, use this snippet.
$> php -r "print_r(get_class_methods(new SplObjectStorage()));"
Results for PHP 5.2.13
====
Array
(
[0] => attach
[1] => detach
[2] => contains
[3] => count
[4] => rewind
[5] => valid
[6] => key
[7] => current
[8] => next
[9] => unserialize
[10] => serialize
)
Results for PHP 5.3.2
=====
Array
(
[0] => attach
[1] => detach
[2] => contains
[3] => addAll
[4] => removeAll
[5] => getInfo
[6] => setInfo
[7] => count
[8] => rewind
[9] => valid
[10] => key
[11] => current
[12] => next
[13] => unserialize
[14] => serialize
[15] => offsetExists
[16] => offsetSet
[17] => offsetUnset
[18] => offsetGet
)