我正在尝试从另一个网站获取JSON文件，读取该文件，然后将其解码为多维数组。到目前为止，它似乎仍然有效。但是，当我尝试将其分解为多个变量以进行回显时，当其4个级别变深时，它将出错。您可以从PHP代码中的链接中看到实际的JSON文件，以下是我正在使用的PHP代码。有问题的具体变量是2个区域中的$ prices和$ rulings。有人可以为此提供任何帮助。
<?php
$path = 'https://www.mtgjson.com/json/LEA.json';
$FileContents = file_get_contents($path);
$cards = json_decode($FileContents, true);
foreach ($cards['cards'] as $mtgcard){
$Artist = $mtgcard['artist'];
$borderColor = $mtgcard['borderColor'];
$colorIdentity = $mtgcard['colorIdentity'][0];
$Colors = $mtgcard['colors'][0];
$convertedManaCost = $mtgcard['convertedManaCost'];
$edhrecRank = $mtgcard['edhrecRank'];
$flavorText = $mtgcard['flavorText'];
$cards_foreignData = implode($mtgcard['foreignData'],",");
$foreignData = explode(',', $cards_foreignData);
$frameVersion = $mtgcard['frameVersion'];
$hasFoil = $mtgcard['hasFoil'];
$hasNonFoil = $mtgcard['hasNonFoil'];
$isPaper = $mtgcard['isPaper'];
$Layout = $mtgcard['layout'];
$cards_legalities = implode($mtgcard['legalities'],",");
$legalities = explode(',', $cards_legalities);
$manaCost = $mtgcard['manaCost'];
$mcmId = $mtgcard['mcmId'];
$mcmMetaId = $mtgcard['mcmMetaId'];
$mtgstocksId = $mtgcard['mtgstocksId'];
$multiverseId = $mtgcard['multiverseId'];
$name = $mtgcard['name'];
$number = $mtgcard['number'];
$originalText = $mtgcard['originalText'];
$originalType = $mtgcard['originalType'];
$power = $mtgcard['power'];
$cards_prices = implode($mtgcard['prices'],",");
$prices = explode(',', $cards_prices);
$cards_prices_2 = implode($cards_prices['paper'],",");
$prices_2 = explode(',', $cards_prices_2);
$cards_printings = implode($mtgcard['printings'],",");
$printings = explode(',', $cards_printings);
$cards_purchaseUrls = implode($mtgcard['purchaseUrls'],",");
$purchaseUrls = explode(',', $cards_purchaseUrls);
$rarity = $mtgcard['rarity'];
$cards_rulings = implode($mtgcard['rulings'],",");
$rulings = explode(',', $cards_rulings);
$scryfallId = $mtgcard['scryfallId'];
$scryfallIllustrationId = $mtgcard['scryfallIllustrationId'];
$scryfallOracleId = $mtgcard['scryfallOracleId'];
$cards_subtypes = implode($mtgcard['subtypes'],",");
$subtypes = explode(',', $cards_subtypes);
$cards_supertypes = implode($mtgcard['supertypes'],",");
$supertypes = explode(',', $cards_supertypes);
$tcgplayerProductId = $mtgcard['tcgplayerProductId'];
$text = $mtgcard['text'];
$toughness = $mtgcard['toughness'];
$type = $mtgcard['type'];
$types = $mtgcard['types'][0];
$uuid = $mtgcard['uuid'];
$a = substr($scryfallId, 0, 1);
$b = substr($scryfallId, 1, 1);
$convert = "<img src='https://img.scryfall.com/cards/large/front/" .$a. "/" .$b. "/" .$scryfallId. ".jpg' />";
echo $convert;
echo "Artist Name: " .$Artist. "<br/>";
echo "Border Color: " .$borderColor. "<br/>";
echo "colorIdentity: " .$colorIdentity. "<br/>";
echo "Colors: " .$Colors. "<br/>";
echo "convertedManaCost: " .$convertedManaCost. "<br/>";
echo "edhrecRank: " .$edhrecRank. "<br/>";
echo "flavorText: " .$flavorText. "<br/>";
echo "foreignData: " .$foreignData[0]. "<br/>";
echo "frameVersion: " .$frameVersion. "<br/>";
echo "hasFoil: " .$hasFoil. "<br/>";
echo "hasNonFoil: " .$hasNonFoil. "<br/>";
echo "isPaper: " .$isPaper. "<br/>";
echo "Layout: " .$Layout. "<br/>";
echo "Brawl: " .$legalities[0]. "<br/>";
echo "Commander: " .$legalities[1]. "<br/>";
echo "Duel: " .$legalities[2]. "<br/>";
echo "Future: " .$legalities[3]. "<br/>";
echo "Historic: " .$legalities[4]. "<br/>";
echo "Legacy: " .$legalities[5]. "<br/>";
echo "Modern: " .$legalities[6]. "<br/>";
echo "Oldschool: " .$legalities[7]. "<br/>";
echo "Penny: " .$legalities[8]. "<br/>";
echo "Pioneer: " .$legalities[9]. "<br/>";
echo "Standard: " .$legalities[10]. "<br/>";
echo "Vintage: " .$legalities[11]. "<br/>";
echo "Manacost: " .$manaCost. "<br/>";
echo "mcmId: " .$mcmId. "<br/>";
echo "mcmMetaId: " .$mcmMetaId. "<br/>";
echo "mtgstocksId: " .$mtgstocksId. "<br/>";
echo "multiverseId: " .$multiverseId. "<br/>";
echo "name: " .$name. "<br/>";
echo "number: " .$number. "<br/>";
echo "originaltext: " .$originalText. "<br/>";
echo "originaltype: " .$originalType. "<br/>";
echo "power: " .$power. "<br/>";
echo "MTGO prices: " .$prices[0]. "<br/>";
echo "MTGO Foil Prices: " .$prices[1]. "<br/>";
echo "Paper Prices: " .prices[2] "<br/>"; <- 4 levels deep doesnt work
echo "Paper Foil Prices: " .$prices[3]. "<br/>"; <- 4 levels deep doesnt work
echo "purchaseUrls: " .$purchaseUrls[0]. "<br/>";
echo "purchaseUrls: " .$purchaseUrls[1]. "<br/>";
echo "purchaseUrls: " .$purchaseUrls[2]. "<br/>";
echo "rarity: " .$rarity. "<br/>";
echo "ruling: " .$rulings['date'].$rulings['text'] "<br/>"; <-- 4 levels deep doesnt work
echo "scryfallId: " .$scryfallId. "<br/>";
echo "scryfallIllustrationId: " .$scryfallIllustrationId. "<br/>";
echo "scryfallOracleId: " .$scryfallOracleId. "<br/>";
echo "subtypes: " .$subtypes[0]. "<br/>";
echo "supertypes: " .$supertypes[0]. "<br/>";
echo "tcgplayerProductId: " .$tcgplayerProductId. "<br/>";
echo "text: " .$text. "<br/>";
echo "toughness: " .$toughness. "<br/>";
echo "type: " .$type. "<br/>";
echo "types: " .$types. "<br/>";
echo "uuid: " .$uuid. "<br/>";
} ？>
答案 0 :(得分：1)
您应该提到数组名称以获取数组中的内容，这是示例代码，并且艺术家使用小写的“ a”而不是大写字母
根据评论请求进行编辑
使用字符串获取“合法性”数组，使用implode分隔，然后使用爆炸，然后转换为数组以打印这些字符串
注意：仅使用爆破键而不是键
导入值<?php
// error_reporting(0);
// header('Content-type: application/json');
$path = 'https://www.mtgjson.com/json/LEA.json';
$FileContents = file_get_contents($path);
$cards = json_decode($FileContents, true);
foreach($cards['cards'] as $mtgcard) {
echo '<br>' .$course_data1 = $mtgcard['artist'];
$cards_legalities = implode($mtgcard['legalities'],",");
$myArray = explode(',', $cards_legalities);
echo $myArray[0];// 1st array
//Multidimensional Array for your updated question
$cards_prices_paper = implode($mtgcard['prices']['paper'],",");
$prices_paper_array = explode(',', $cards_prices_paper);
echo $prices_paper_array[0];
$rulings_date = implode(', ', array_column($mtgcard['rulings'], 'date'));
$rulings_date_array = explode(",", $rulings_date);
echo $rulings_date_array[0];
}
?>