鍦≒HP涓紝count()鍑芥暟鐢ㄤ簬璁＄畻鏁扮粍鐨勯暱搴︽垨鑰呭璞′腑鐨勫睘鎬х殑涓暟銆傚畠鐨勪娇鐢ㄦ柟寮忔湁浠ヤ笅鍑犵锛?/p>

1. 璁＄畻鏁扮粍闀垮害锛?/li>

$arr = [1, 2, 3, 4, 5];
$length = count($arr);
echo $length; // 杈撳嚭 5

2. 璁＄畻宓屽鏁扮粍鐨勬€诲厓绱犱釜鏁帮細

$arr = [[1, 2], [3, 4, 5], [6]];
$totalElements = count($arr, COUNT_RECURSIVE);
echo $totalElements; // 杈撳嚭 7

3. 璁＄畻瀵硅薄涓殑灞炴€т釜鏁帮細

class MyClass {
public $prop1 = 'value1';
public $prop2 = 'value2';
protected $prop3 = 'value3';
private $prop4 = 'value4';
}
$myObj = new MyClass();
$propCount = count(get_object_vars($myObj));
echo $propCount; // 杈撳嚭 2

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