Question

我有一个很大的JSON文件，我试图插入到数据库中。使用json_decode将其转换为数组以将其插入数据库时，我收到错误：

Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 188340087 bytes) in site.php on line 48

是否有更有效的方式来翻译这些数据而无需逐行读取和缓冲。如果没有，我应该如何阅读每一行并解码它？我很感激任何帮助。

{"items":[ {
  "itemId" : 17730521,
  "parentItemId" : 17730521,
  "name" : "1000 lb Flat-Free Super Steel P-Handle Hand Truck",
  "msrp" : 110.0,
  "salePrice" : 87.94,
  "upc" : "053417031815",
  "categoryPath" : "Home Improvement/Tools/Lifting Equipment",
  "shortDescription" : "The Flat-Free 1000-pound Heavy-Duty Hand Truck is one tough truck with its heavy-duty oversized frame, extra large base plate and curved frame back that easily transports boxes or cylinders.",
  "longDescription" : "&lt;br&gt;&lt;b&gt;1000 lb Flat-Free Super Steel P-Handle Hand Truck:&lt;/b&gt;&lt;ul&gt;&lt;li&gt;Heavy-duty flat-free 10&quot; solid rubber wheels&lt;/li&gt;&lt;li&gt;1000 lb capacity&lt;/li&gt;&lt;li&gt;Extra large 20&quot; x 8&quot; base plate for bulky and oversized loads&lt;/li&gt;&lt;li&gt;50&quot; height for larger loads&lt;/li&gt;&lt;li&gt;P-loop handle for easy 1- or 2-hand control&lt;/li&gt;&lt;li&gt;Large fenders to protect load from damage&lt;/li&gt;&lt;li&gt;Dimensions: 50&quot;L x 21&quot;W x 19&quot;H&lt;/li&gt;&lt;li&gt;1-year warranty&lt;/li&gt;&lt;/ul&gt;",
  "brandName" : "Generic",
  "thumbnailImage" : "this is a link",
  "mediumImage" : "this is a link",
  "largeImage" : "this is a link",
  "productTrackingUrl" : "",
  "ninetySevenCentShipping" : false,
  "standardShipRate" : 0.0,
  "twoThreeDayShippingRate" : 79.97,
  "overnightShippingRate" : 73.97,
  "marketplace" : false,
  "shipToStore" : true,
  "freeShipToStore" : true,
  "modelNumber" : "H5986",
  "productUrl" : "",
  "categoryNode" : "1072864_1031899_1043985",
  "bundle" : false,
  "clearance" : true,
  "preOrder" : false,
  "stock" : "Available",
  "availableOnline" : true,
  "bestMarketplacePrice" : {
    "price" : 120.0,
    "sellerInfo" : "PlumStruck",
    "standardShipRate" : 5.99,
    "availableOnline" : true,
    "clearance" : false
  }
}, 
...
]}

Answer 1

有一个好人写了这个lib来解析大型JSON https://github.com/kuma-giyomu/JSONParser

正如作者所说：

如何：

阅读test / test.php文件以获取真实示例。但基本上是：

创建解析器实例

为您感兴趣的事件设置处理程序

运行parseDocument方法

等一下

使用大型.JSON文件（PHP）

1 个答案: