使用POST傳遞序列化數組會產生意想不到的結果

我的目標是通過POST傳遞數組到另一個頁面並訪問它的數據。我找到了一種使用serialize（）的方法。

它工作正常，因爲我能夠看到另一個頁面上的數組，但是當我嘗試訪問主數組內的嵌套數組時，我沒有得到預期的結果。換句話說，我可以訪問主數組中的數據，但是對於內部數組我得到「null」。

讓我告訴你我做了什麼：

//The array: 
    $cart = &JModelLegacy::getInstance('cart', 'jshop'); 
    $cart->load(); 

//I can access data of the inner array (the products) within the $cart array, for example: 
    $productos = $cart->products; 
    echo "<pre>".json_encode($cart, JSON_PRETTY_PRINT)."</pre>";   
    echo "<pre>".json_encode($productos[1], JSON_PRETTY_PRINT)."</pre>";   

//Then serializing it: 
    $serializedcart = serialize($cart); 

//Then sending it in a form using POST 
    <input type='hidden' name='cartserialized' value='<?php print $serializedcart?>'>

....那麼其他頁面上：

// I unserialize the transferred array: 
$carretilla = unserialize($_POST[cartserialized]); 

// And this doesn't work anymore, I get "null" for $productos: 
$productos = $carretilla->products; 
echo "<pre>".json_encode($carretilla, JSON_PRETTY_PRINT)."</pre>";  
echo "<pre>".json_encode($productos[1], JSON_PRETTY_PRINT)."</pre>";

爲什麼？任何幫助將不勝感激。

這是串行化之前的輸出：（$車和產品內購物車的輸出。）

{ "type_cart": "cart", "products": [ { "quantity": 1, "product_id": 329, "category_id": "17", "tax": null, "tax_id": "0", "product_name": "ATX Cromo Puro", "thumb_image": "thumb_882-2.jpg", "delivery_times_id": "0", "ean": "882-2", "attributes": "a:1:{i:1;i:28;}", "attributes_value": [ { "attr_id": 1, "value_id": 28, "attr": "Color", "value": "Cromo" } ], "extra_fields": [], "weight": "0.0000", "vendor_id": "1", "files": "a:0:{}", "freeattributes": "a:0:{}", "manufacturer": "Cross", "pid_check_qty_value": "A:218", "price": 570, "href": "\/index.php\/tienda\/product\/view\/17\/329", "free_attributes_value": [] }, { "quantity": 3, "product_id": 469, "category_id": "21", "tax": null, "tax_id": "0", "product_name": "Bater\u00eda Auxiliar", "thumb_image": "thumb_JK-PB035.jpg", "delivery_times_id": "0", "ean": "JK-PB035", "attributes": "a:0:{}", "attributes_value": [], "extra_fields": [], "weight": "35.0000", "vendor_id": "1", "files": "a:0:{}", "freeattributes": "a:0:{}", "manufacturer": null, "pid_check_qty_value": "P:469", "price": 265, "href": "\/index.php\/tienda\/product\/view\/21\/469", "free_attributes_value": [] } ], "count_product": 4, "price_product": 1365, "summ": 0, "rabatt_id": 0, "rabatt_value": 0, "rabatt_type": 0, "rabatt_summ": 0, "model_temp_cart": "tempcart", "price_product_brutto": 1365 } { "quantity": 3, "product_id": 469, "category_id": "21", "tax": null, "tax_id": "0", "product_name": "Bater\u00eda Auxiliar", "thumb_image": "thumb_JK-PB035.jpg", "delivery_times_id": "0", "ean": "JK-PB035", "attributes": "a:0:{}", "attributes_value": [], "extra_fields": [], "weight": "35.0000", "vendor_id": "1", "files": "a:0:{}", "freeattributes": "a:0:{}", "manufacturer": null, "pid_check_qty_value": "P:469", "price": 265, "href": "\/index.php\/tienda\/product\/view\/21\/469", "free_attributes_value": [] }

，系列化後發送：

{ "__PHP_Incomplete_Class_Name": "jshopCart", "type_cart": "cart", "products": [ { "quantity": 1, "product_id": 329, "category_id": "17", "tax": null, "tax_id": "0", "product_name": "ATX Cromo Puro", "thumb_image": "thumb_882-2.jpg", "delivery_times_id": "0", "ean": "882-2", "attributes": "a:1:{i:1;i:28;}", "attributes_value": [ { "attr_id": 1, "value_id": 28, "attr": "Color", "value": "Cromo" } ], "extra_fields": [], "weight": "0.0000", "vendor_id": "1", "files": "a:0:{}", "freeattributes": "a:0:{}", "manufacturer": "Cross", "pid_check_qty_value": "A:218", "price": 570, "href": "\/index.php\/tienda\/product\/view\/17\/329", "free_attributes_value": [] }, { "quantity": 3, "product_id": 469, "category_id": "21", "tax": null, "tax_id": "0", "product_name": "Bater\u00eda Auxiliar", "thumb_image": "thumb_JK-PB035.jpg", "delivery_times_id": "0", "ean": "JK-PB035", "attributes": "a:0:{}", "attributes_value": [], "extra_fields": [], "weight": "35.0000", "vendor_id": "1", "files": "a:0:{}", "freeattributes": "a:0:{}", "manufacturer": null, "pid_check_qty_value": "P:469", "price": 265, "href": "\/index.php\/tienda\/product\/view\/21\/469", "free_attributes_value": [] } ], "count_product": 4, "price_product": 1365, "summ": 0, "rabatt_id": 0, "rabatt_value": 0, "rabatt_type": 0, "rabatt_summ": 0, "model_temp_cart": "tempcart", "price_product_brutto": 1365 } null

來源

2016-07-06 ILemus

在嘗試反序列化之前，您是否驗證過$ _POST [cartserialized]在另一頁上是否有內容？ – tjfo

使用var_dump，檢查是否只是在對象序列化中做了淺拷貝或深層拷貝。 – Bonatti

是的。它有數據，你可以在輸出中看到（問題編輯）。唯一的區別是我不知道它來自哪裏的附加關鍵字（值）「__PHP_Incomplete_Class_Name」。至於淺拷貝或深拷貝，我不知道你在說什麼Bonatti。多謝你們。 – ILemus

爲了反序列化一個PHP中的對象，你需要先加載這個類。因此，請包含定義此對象類型的腳本，然後反序列化。

來源

2016-07-06 17:26:46 AlexanderMP

有關進一步參考，請參閱[對象序列化]（http://php.net/manual/en/language.oop5.serialization.php）。 – showdev

謝謝你們。

我試着使用json_encode和json_decode在其他論壇建議，它似乎工作更好，我沒有問題發送和檢索另一端的數據。

感謝您寶貴的時間。

來源

2016-07-06 20:27:07 ILemus

使用POST傳遞序列化數組會產生意想不到的結果

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