php：循环通过 json 数组

使用解码 JSON 字符串，然后使用常规循环循环：json_decode()

$arr = json_decode('[{"var1":"9","var2":"16","var3":"16"},{"var1":"8","var2":"15","var3":"15"}]');

foreach($arr as $item) { //foreach element in $arr
    $uses = $item['var1']; //etc
}

如果需要关联数组，请将第二个函数参数设置为 true

某些版本的 php 需要一个第二个参数 true，如果你需要一个关联数组

$json  = '[{"var1":"9","var2":"16","var3":"16"},{"var1":"8","var2":"15","var3":"15"}]';
$array = json_decode( $json, true );