选择具有PHP条件的JSON数组

Question

我有一个文本文件，可正确显示数据表中的所有记录，但我只想显示带有“ram”的记录。例如：

{ "aaData": [
["ram","india"],
["siva","india"],
["mani","india"],
["ram","india"],
["ram","india"]
] }

我正在使用PHP和Symfony1.3。请帮帮我。

Answer 1

你可以试试这个：

$array = json_decode($json_str, true); // convert json to array
print_r($array['ram']); // display items with ram key

Answer 2

试试这个：

$json_str = '{ "aaData": [
["ram","india"],
["siva","india"],
["mani","india"],
["ram","india"],
["ram","india"]
] }
';
$array = json_decode($json_str, true); 
$entries_with_ram = array();
foreach($array['aaData']  as $entry)
    if($entry[0] == "ram")
        $entries_with_ram[] = $entry;

print_r($entries_with_ram);