array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'splfixedarray.count.php', 1 => 'SplFixedArray::count', 2 => 'Returns the size of the array', ), 'up' => array ( 0 => 'class.splfixedarray.php', 1 => 'SplFixedArray', ), 'prev' => array ( 0 => 'splfixedarray.construct.php', 1 => 'SplFixedArray::__construct', ), 'next' => array ( 0 => 'splfixedarray.current.php', 1 => 'SplFixedArray::current', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/spl/splfixedarray/count.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

SplFixedArray::count

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SplFixedArray::count — Returns the size of the array

说明

public SplFixedArray::count(): int

Returns the size of the array.

参数

此函数没有参数。

返回值

Returns the size of the array.

示例

示例 #1 SplFixedArray::count() example

<?php
$array = new SplFixedArray(5);
echo $array->count() . "\n";
echo count($array) . "\n";
?>

以上示例会输出：

5
5

注释

注意:

This method is functionally equivalent to SplFixedArray::getSize().

注意:

The count of elements is always equal to the set size because all values are initially initialized with null.

参见