Question

php数组中怎么取值？

我print_r($aa[0])
就得到Array ( [ID] => a40211 [name] => 热电偶针头 [price] => 5 [count] => 4 )
请问我怎么得到ID的单个值，比如a40211

Answer 1

$aa[0]['ID']即可
或者用循环得到所有的
foreach ($aa as $key => $val) {
echo $val['ID'];//这里随便你怎么操作啦
}

Answer 2

$dataArray = array("a"=>"hello" ,"b"=>"world" ,c""=>"!");
foreach(array_keys($dataArray) as $key){
$str = "<br>key :" . $key;
$str .= value :" . $dataArray[$key];
echo $str;
}

Answer 3

echo $aa[0]['ID'].'<br>';
echo $aa[0]['name'];

Answer 4

$aa[0]['ID']
$aa[1]['name']等等等等

Answer 5

$aa[0]['ID'];