costTime 52 currTime 20230915172534 data rows autoRelatedFlag 1234 bookFlag 2 canPlayFlag haha autoRelatedFlag 4321 bookFlag 2 canPlayFlag qaqa php 得到autoRelatedFlag值为1234中的canPlay

要获取autoRelatedFlag值为1234中的canPlayFlag值，可以使用以下代码：

$jsonData = '{
	"costTime": 52,
	"currTime": "20230915172534",
	"data": {
		"rows": [{
			"autoRelatedFlag": 1234,
			"bookFlag": 2,
			"canPlayFlag": "haha"
		}, {
			"autoRelatedFlag": 4321,
			"bookFlag": 2,
			"canPlayFlag": "qaqa"
		}]
	}
}';

$data = json_decode($jsonData, true);
$rows = $data['data']['rows'];

foreach ($rows as $row) {
    if ($row['autoRelatedFlag'] == 1234) {
        $canPlayFlag = $row['canPlayFlag'];
        break;
    }
}

echo $canPlayFlag;

这段代码将会输出"haha"。