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php json數組有哪些實戰技巧

PHP
小樊
100
2024-07-05 03:01:32
欄目: 編程語言

  1. 使用json_encode()將PHP數組轉換為JSON格式數據:
$data = array("name" => "John", "age" => 30, "city" => "New York");
$json_data = json_encode($data);
echo $json_data;
  1. 使用json_decode()將JSON格式數據轉換為PHP數組:
$json_data = '{"name": "John", "age": 30, "city": "New York"}';
$data = json_decode($json_data, true);
print_r($data);
  1. 處理JSON數據中的嵌套數組:
$json_data = '{"name": "John", "age": 30, "address": {"street": "123 Main St", "city": "New York"}}';
$data = json_decode($json_data, true);
echo $data['address']['city'];
  1. 處理JSON數據中的數組:
$json_data = '{"name": "John", "age": 30, "hobbies": ["reading", "running", "cooking"]}';
$data = json_decode($json_data, true);
foreach ($data['hobbies'] as $hobby) {
    echo $hobby . "<br>";
}
  1. 處理JSON數據中的日期格式:
$json_data = '{"date": "2022-01-01"}';
$data = json_decode($json_data, true);
$date = date("Y-m-d", strtotime($data['date']));
echo $date;

這些是一些常見的實戰技巧,可以幫助您更好地處理和操作JSON數據。

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