SplObjectStorage::getInfo

(PHP 5 >= 5.3.0)

SplObjectStorage::getInfo — Returns the data associated with the current iterator entry

说明

public mixed SplObjectStorage::getInfo ( void )

Returns the data, or info, associated with the object pointed by the current iterator position.

参数

此函数没有参数。

返回值

The data associated with the current iterator position.

范例

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"

参见

SplObjectStorage::current() - Returns the current storage entry
SplObjectStorage::rewind() - Rewind the iterator to the first storage element
SplObjectStorage::key() - Returns the index at which the iterator currently is
SplObjectStorage::next() - Move to the next entry
SplObjectStorage::valid() - Returns if the current iterator entry is valid
SplObjectStorage::setInfo() - Sets the data associated with the current iterator entry

用户评论:

[#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
)