Question

我每秒都会通过ajax在JavaScript程序中获取此数组，请求的响应大约需要3到4秒才能完成。因此，我希望将此数组拆分为块但未能完成数组

use PHPUnit\Framework\TestCase;

class Mocks extends TestCase{
    public function makeMysqliMock(array $queries): mysqli{
        // build mocked mysqli-object
        #$link = $this
        #   ->getMockBuilder("mysqli")
        #   // set methods
        #   ->setMethods(['__get', "query", "real_escape_string"])
        #   ->getMock();
        $link = $this->createMock("mysqli");
        // set method 'real_escape_string'
        $link->expects($this->any())
            ->method("real_escape_string")
            ->will($this->returnCallback(function($str){
                return addslashes($str); 
            }));
        // set method 'query'
        $link->expects($this->any())
            ->method("query")
            ->will($this->returnCallback(function(string $query) use ($queries){
                // pick the query result for the current test
                $data = isset($queries[$query]) ? $queries[$query] : null;
                // build mocked 'mysqli_result'
                if (is_array($data)){
                    $result = $this
                        ->getMockBuilder("mysqli_result")
                        ->setMethods(["fetch_assoc", "__get"])
                        ->disableOriginalConstructor()
                        ->getMock();
                    // build simulated fetch method
                    $result->expects($this->any())
                        ->method("fetch_assoc")
                        ->withAnyParameters()
                        ->will($this->returnCallback(function() use ($data){
                            // set internal result pointer
                            static $index = 0;
                            // return current result - increment pointer
                            return isset($data[$index]) ? $data[$index++] : false;
                        }));
                    $result->expects($this->at(0))
                        ->method("__get")
                        ->with($this->equalTo("mysqli_num_rows"))
                        ->will($this->returnValue(count($data)));


                    return $result;
                }else {
                    return is_null($data) ? false : 1;
                }
            }));
        return $link;
    }
}

请帮助我，我对此感到困惑......

Answer 1

首先尝试解析：

var json = '{"m":true,"s":true,"q":{"eur":{"b":"1.06783","a":"1.06790","h":"1.06978","l":"1.06729"},"gbp":{"b":"1.24407","a":"1.24416","h":"1.25093","l":"1.24397"},"aud":{"b":"0.76456","a":"0.76464","h":"0.76630","l":"0.76387"},"cad":{"b":"1.33550","a":"1.33557","h":"1.33583","l":"1.33251"},"jpy":{"b":"111.996","a":"112.002","h":"112.204","l":"111.700"},"chf":{"b":"1.00110","a":"1.00117","h":"1.00188","l":"0.99850"},"xau":{"b":"1241.75","a":"1242.1","h":"1244.69","l":"1239.53"},"xag":{"b":"18.056","a":"18.098","h":"18.175","l":"18.02"},"nok":{"b":"8.58853","a":"8.5901","h":"8.59342","l":"8.55128"},"sek":{"b":"8.9308","a":"8.9323","h":"8.9515","l":"8.92151"},"sgd":{"b":"1.3975","a":"1.3977","h":"1.3959","l":"1.3987"},"pkr":{"b":"104.8300","a":"105.8300","h":"104.8300","l":"104.620"},"dkk":{"b":"6.9645","a":"6.9648","h":"6.9500","l":"6.9691"},"nzd":{"b":"0.69835","a":"0.69859","h":"0.70084","l":"0.69794"},"zar":{"b":"13.3688","a":"13.37396","h":"13.6475","l":"13.232"},"hkd":{"b":"7.77017","a":"7.77098","h":"7.77244","l":"7.76847"},"inr":{"b":"64.8500","a":"64.8600","h":"64.925","l":"64.7800"},"try":{"b":"3.63447","a":"3.63558","h":"3.65941","l":"3.63076"},"pln":{"b":"3.9514","a":"3.9520","h":"3.9361","l":"3.9520"},"cnh":{"b":"6.88261","a":"6.88352","h":"6.89029","l":"6.8706"},"myr":{"b":"0.2255","a":"0.2265","h":"0.2253","l":"0.2257"},"sar":{"b":"0.2662","a":"0.2672","h":"0.2662","l":"0.2662"}}}';
json = JSON.parse(json);

console.log(json.q.try);

现在您可以轻松访问所需的字段...

Answer 2

要将其拆分为数组块，您可以使用$ .map

var json = '{"m":true,"s":true,"q":{"eur":{"b":"1.06783","a":"1.06790","h":"1.06978","l":"1.06729"},"gbp":{"b":"1.24407","a":"1.24416","h":"1.25093","l":"1.24397"},"aud":{"b":"0.76456","a":"0.76464","h":"0.76630","l":"0.76387"},"cad":{"b":"1.33550","a":"1.33557","h":"1.33583","l":"1.33251"},"jpy":{"b":"111.996","a":"112.002","h":"112.204","l":"111.700"},"chf":{"b":"1.00110","a":"1.00117","h":"1.00188","l":"0.99850"},"xau":{"b":"1241.75","a":"1242.1","h":"1244.69","l":"1239.53"},"xag":{"b":"18.056","a":"18.098","h":"18.175","l":"18.02"},"nok":{"b":"8.58853","a":"8.5901","h":"8.59342","l":"8.55128"},"sek":{"b":"8.9308","a":"8.9323","h":"8.9515","l":"8.92151"},"sgd":{"b":"1.3975","a":"1.3977","h":"1.3959","l":"1.3987"},"pkr":{"b":"104.8300","a":"105.8300","h":"104.8300","l":"104.620"},"dkk":{"b":"6.9645","a":"6.9648","h":"6.9500","l":"6.9691"},"nzd":{"b":"0.69835","a":"0.69859","h":"0.70084","l":"0.69794"},"zar":{"b":"13.3688","a":"13.37396","h":"13.6475","l":"13.232"},"hkd":{"b":"7.77017","a":"7.77098","h":"7.77244","l":"7.76847"},"inr":{"b":"64.8500","a":"64.8600","h":"64.925","l":"64.7800"},"try":{"b":"3.63447","a":"3.63558","h":"3.65941","l":"3.63076"},"pln":{"b":"3.9514","a":"3.9520","h":"3.9361","l":"3.9520"},"cnh":{"b":"6.88261","a":"6.88352","h":"6.89029","l":"6.8706"},"myr":{"b":"0.2255","a":"0.2265","h":"0.2253","l":"0.2257"},"sar":{"b":"0.2662","a":"0.2672","h":"0.2662","l":"0.2662"}}}';
json = JSON.parse(json);

var arr = $.map(json.q, function(el) { return el });

console.log(arr);

Answer 3

使用json_decode()将JSON数据转换为多维数组。当TRUE作为第二个参数传递时，返回的对象将被转换为关联数组。

print_r(json_decode(json_array, true));

之后使用array_chunk()函数将多维数组拆分成更小的块。

示例：

$input_array = array('a', 'b', 'c', 'd', 'e');
print_r(array_chunk($input_array, 2));

如何将阵列分成小块？

3 个答案: