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Php And Jsonreader Not Parsing A Json File


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I am trying to use JSONReader (along with PHP & XPATH) to parse a very large JSON file, then display search results. A stream parser (such as JSONREader) is recommended over JSON_decode when parsing large files. This simple code below is not displaying any results (in the echo statements). Any advice is greatly appreciated.


$reader = new JSONReader(); 


$dom = new DOMDocument;

$xpath = new DOMXpath($dom);


while ($reader->read() && $reader->name !== 'product') {




while ($reader->name === 'product') {

$node = $dom->importNode($reader->expand(), TRUE);


$name = $xpath->evaluate('string(name)', $node);

$price = $xpath->evaluate('string(price)', $node);

echo "Name: " . $name . ". ";

echo "Price: " . $price . ". ";






Here is a snippet of the JSON file:

   "products": { 

      "product" : [

   { "name" : "Dell 409", "price" : 499.99},

   { "name" : "HP Lap top", "price" : 599.99},

   { "name" : "Compaq 11", "price" : 299.99}



] }}
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