如何從此MASSIVE json對象中獲取Score？

Question

我想要$ result ['score']，但是即使嘗試$ result-> score，$ result [0]和$ result [stdClass] ['score']，它也不會返回true。 非常感謝所有幫助。

Object(stdClass)#1 (9) { ["kind"]=> string(22) "pagespeedonline#result" ["id"]=> string(34) "https://www.google.com/?gws_rd=ssl" ["responseCode"]=> int(200) ["title"]=> string(6) "Google" ["score"]=> int(92) ["pageStats"]=> object(stdClass)#2 (9) { ["numberResources"]=> int(13) ["numberHosts"]=> int(5) ["totalRequestBytes"]=> string(4) "2295" ["numberStaticResources"]=> int(8) ["htmlResponseBytes"]=> string(6) "190230" ["imageResponseBytes"]=> string(5) "45452" ["javascriptResponseBytes"]=> string(6) "780563" ["otherResponseBytes"]=> string(4) "1867" ["numberJsResources"]=> int(4) } ["formattedResults"]=> object(stdClass)#3 (2) { ["locale"]=> string(5) "en_US" ["ruleResults"]=> object(stdClass)#4 (10) { ["AvoidLandingPageRedirects"]=> object(stdClass)#5 (3) { ["localizedRuleName"]=> string(28) "Avoid landing page redirects" ["ruleImpact"]=> float(7) ["urlBlocks"]=> array(2) { [0]=> object(stdClass)#6 (1) { ["header"]=> object(stdClass)#7 (2) { ["format"]=> string(96) "Your page has $1 redirects. Redirects introduce additional delays before the page can be loaded." ["args"]=> array(1) { [0]=> object(stdClass)#8 (2) { ["type"]=> string(11) "INT_LITERAL" ["value"]=> string(1) "2" } } } }

這是對象的格式化粘貼框的副本

會做：

"{\n \"kind\": \"pagespeedonline#result\",\n \"id\": \"https:\/\/www.google.com\/?gws_rd=ssl\",\n \"responseCode\": 200,\n \"title\": \"Google\",\n \"score\": 92,\n \"pageStats\": {\n \"numberResources\": 12,\n \"numberHosts\": 5,\n \"totalRequestBytes\": \"2186\",\n \"numberStaticResources\": 8,\n \"htmlResponseBytes\": \"189695\",\n \"imageResponseBytes\": \"45452\",\n \"javascriptResponseBytes\": \"780569\",\n \"otherResponseBytes\": \"1595\",\n \"numberJsResources\": 4\n },\n \"formattedResults\": {\n \"locale\": \"en_US\",\n \"ruleResults\": {\n \"AvoidLandingPageRedirects\": {\n \"localizedRuleName\": \"Avoid landing page redirects\",\n \"ruleImpact\": 7.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"Your page has $1 redirects. Redirects introduce additional delays before the page can be loaded.\",\n \"args\": [\n {\n \"type\": \"INT_LITERAL\",\n \"value\": \"2\"\n }\n ]\n }\n },\n {\n \"header\": {\n \"format\": \"Avoid landing page redirects for the following chain of redirected URLs.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/AvoidRedirects\"\n }\n ]\n },\n \"urls\": [\n {\n \"result\": {\n \"format\": \"$1\",\n \"args\": [\n {\n \"type\": \"URL\",\n \"value\": \"http:\/\/google.com\/\"\n }\n ]\n }\n },\n {\n \"result\": {\n \"format\": \"$1\",\n \"args\": [\n {\n \"type\": \"URL\",\n \"value\": \"http:\/\/www.google.com\/\"\n }\n ]\n }\n },\n {\n \"result\": {\n \"format\": \"$1\",\n \"args\": [\n {\n \"type\": \"URL\",\n \"value\": \"https:\/\/www.google.com\/?gws_rd=ssl\"\n }\n ]\n }\n }\n ]\n }\n ]\n },\n \"EnableGzipCompression\": {\n \"localizedRuleName\": \"Enable compression\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"You have compression enabled. Learn more about enabling compression.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/EnableCompression\"\n }\n ]\n }\n }\n ]\n },\n \"LeverageBrowserCaching\": {\n \"localizedRuleName\": \"Leverage browser caching\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"You have enabled browser caching. Learn more about browser caching recommendations.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/LeverageBrowserCaching\"\n }\n ]\n }\n }\n ]\n },\n \"MainResourceServerResponseTime\": {\n \"localizedRuleName\": \"Reduce server response time\",\n \"ruleImpact\": 0.09,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"In our test, your server responded in $1. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.\",\n \"args\": [\n {\n \"type\": \"DURATION\",\n \"value\": \"0.21 seconds\"\n },\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/Server\"\n }\n ]\n }\n }\n ]\n },\n \"MinifyCss\": {\n \"localizedRuleName\": \"Minify CSS\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"Your CSS is minified. Learn more about minifying CSS.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/MinifyResources\"\n }\n ]\n }\n }\n ]\n },\n \"MinifyHTML\": {\n \"localizedRuleName\": \"Minify HTML\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"Your HTML is minified. Learn more about minifying HTML.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/MinifyResources\"\n }\n ]\n }\n }\n ]\n },\n \"MinifyJavaScript\": {\n \"localizedRuleName\": \"Minify JavaScript\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"Your JavaScript content is minified. Learn more about minifying JavaScript.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/MinifyResources\"\n }\n ]\n }\n }\n ]\n },\n \"MinimizeRenderBlockingResources\": {\n \"localizedRuleName\": \"Eliminate render-blocking JavaScript and CSS in above-the-fold content\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"You have no render-blocking resources. Learn more about removing render-blocking resources.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/BlockingJS\"\n }\n ]\n }\n }\n ]\n },\n \"OptimizeImages\": {\n \"localizedRuleName\": \"Optimize images\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"Your images are optimized. Learn more about optimizing images.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/OptimizeImages\"\n }\n ]\n }\n }\n ]\n },\n \"PrioritizeVisibleContent\": {\n \"localizedRuleName\": \"Prioritize visible content\",\n \"ruleImpact\": 0.0,\n \"urlBlocks\": [\n {\n \"header\": {\n \"format\": \"You have the above-the-fold content properly prioritized. Learn more about prioritizing visible content.\",\n \"args\": [\n {\n \"type\": \"HYPERLINK\",\n \"value\": \"https:\/\/developers.google.com\/speed\/docs\/insights\/PrioritizeVisibleContent\"\n }\n ]\n }\n }\n ]\n }\n }\n },\n \"version\": {\n \"major\": 1,\n \"minor\": 15\n },\n \"screenshot\": {\n \"data\": 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\"height\": 240,\n \"mime_type\": \"image\/jpeg\",\n \"width\": 320\n }\n}\n"

根據請求，這是我從將echo更改為echo "Score Speed is: ". print_r(json_decode($result[0]->score, true)) . "<br/>";得到的輸出echo "Score Speed is: ". print_r(json_decode($result[0]->score, true)) . "<br/>"; echo "Score Speed is: ". print_r(json_decode($result[0]->score, true)) . "<br/>";

（以及echo "Score Speed is: ". print_r(json_decode($result[0]->score)) . "<br/>"; ）

得分速度為：1

抱歉，它不是更具描述性的。

最終編輯：謝謝大家的幫助...這種結合產生了我的數據：

    $formatted = json_decode($results, JSON_PRETTY_PRINT);

//我有使用True而不是JSON_PRETTY_PRINT的舊版本

    echo "formatted data: " . $formatted[0]->score . "<br/>";

//這最終無法正常工作

    echo "2nd try: ". $formatted['score'];

//這確實起作用。

...

...

      //This is the [original piece of code I used as a reference point is here][2]
    echo '<pre>';  
    print_r(json_decode($results['score'],true));   
    echo '</pre>'; 

Answer 1

您正在以錯誤的方式進行操作。 您正在嘗試解碼一個已經解碼的值。

只需嘗試echo顯值即可：

echo $result[0]->score;

---

那是最后一步。 我認為之前的每個步驟都不正確-導致您無法打印預期值的問題。

您應該運行以下過程：

$data = FETCH_THE_JSON_FROM_DATA_SOURCE();
$json = json_decode($data);
// now we find data
echo $json[0]->score;

^{注意：上面的代碼是偽代碼，您需要適當填寫您的部分。}

如果看不到原始json數據，我們就無法告訴您如何獲取。 因此，請幫助我們幫助您。