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這篇文章主要介紹“php如何將json轉(zhuǎn)成數(shù)組對(duì)象”,在日常操作中,相信很多人在php如何將json轉(zhuǎn)成數(shù)組對(duì)象問(wèn)題上存在疑惑,小編查閱了各式資料,整理出簡(jiǎn)單好用的操作方法,希望對(duì)大家解答”php如何將json轉(zhuǎn)成數(shù)組對(duì)象”的疑惑有所幫助!接下來(lái),請(qǐng)跟著小編一起來(lái)學(xué)習(xí)吧!
json_decode()
轉(zhuǎn)換為數(shù)組假設(shè)我們有以下 JSON 字符串:
{ "name": "Tom", "age": 30, "hobbies": ["reading", "running", "swimming"], "address": { "city": "Beijing", "country": "China" } }
現(xiàn)在我們需要將其轉(zhuǎn)換為 PHP 數(shù)組。我們可以使用 json_decode()
函數(shù),并將第二個(gè)參數(shù)設(shè)置為 true
,以表示將 JSON 字符串轉(zhuǎn)換為關(guān)聯(lián)數(shù)組,代碼如下:
$jsonString = '{"name":"Tom","age":30,"hobbies":["reading","running","swimming"],"address":{"city":"Beijing","country":"China"}}'; $assocArray = json_decode($jsonString, true); print_r($assocArray);
輸出結(jié)果為:
Array ( [name] => Tom [age] => 30 [hobbies] => Array ( [0] => reading [1] => running [2] => swimming ) [address] => Array ( [city] => Beijing [country] => China ) )
可以看到,我們成功將 JSON 字符串轉(zhuǎn)換為了 PHP 數(shù)組,并打印了其結(jié)果。
json_decode()
轉(zhuǎn)換為對(duì)象除了將 JSON 字符串轉(zhuǎn)換為 PHP 數(shù)組外,我們還可以將其轉(zhuǎn)換為 PHP 對(duì)象。同樣地,我們可以使用 json_decode()
函數(shù),并將第二個(gè)參數(shù)設(shè)置為 false
或省略,以表示將 JSON 字符串轉(zhuǎn)換為對(duì)象,代碼如下:
$jsonString = '{"name":"Tom","age":30,"hobbies":["reading","running","swimming"],"address":{"city":"Beijing","country":"China"}}'; $obj = json_decode($jsonString); var_dump($obj);
輸出結(jié)果為:
object(stdClass)#1 (4) { ["name"]=> string(3) "Tom" ["age"]=> int(30) ["hobbies"]=> array(3) { [0]=> string(7) "reading" [1]=> string(7) "running" [2]=> string(8) "swimming" } ["address"]=> object(stdClass)#2 (2) { ["city"]=> string(7) "Beijing" ["country"]=> string(5) "China" } }
可以看到,我們成功將 JSON 字符串轉(zhuǎn)換為了 PHP 對(duì)象,并打印了其結(jié)果。
json_decode()
轉(zhuǎn)換為對(duì)象數(shù)組在某些情況下,我們需要將 JSON 字符串轉(zhuǎn)換為多個(gè) PHP 對(duì)象。在這種情況下,我們可以先將其轉(zhuǎn)換為 PHP 數(shù)組,然后使用數(shù)組映射函數(shù)將其轉(zhuǎn)換為 PHP 對(duì)象數(shù)組。代碼如下:
$jsonString = '[{"name":"Tom","age":30},{"name":"Alice","age":25},{"name":"Bob","age":40}]'; $array = json_decode($jsonString, true); $objArray = array_map(function($item) { return (object) $item; }, $array); print_r($objArray);
輸出結(jié)果為:
Array ( [0] => stdClass Object ( [name] => Tom [age] => 30 ) [1] => stdClass Object ( [name] => Alice [age] => 25 ) [2] => stdClass Object ( [name] => Bob [age] => 40 ) )
可以看到,我們成功將 JSON 字符串轉(zhuǎn)換為了 PHP 對(duì)象數(shù)組,并打印了其結(jié)果。
到此,關(guān)于“php如何將json轉(zhuǎn)成數(shù)組對(duì)象”的學(xué)習(xí)就結(jié)束了,希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí),快去試試吧!若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí),請(qǐng)繼續(xù)關(guān)注億速云網(wǎng)站,小編會(huì)繼續(xù)努力為大家?guī)?lái)更多實(shí)用的文章!
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