使用php构建复杂的JSON

Question

我需要从PHP构建一些JSON。 JSON的结构不是那么简单：

{ 

    "new" : {
        "checkpoints" : 
            [
                { 
                    "id" : "businessidea",
                    "name" : "business idea",
                    "purpose" : "Form a business idea", 
                    "customer" : 
                        { "questions" : 
                            [

                                { "questionid" : "id1", "questiontitle": "Evaluate size of the market, likely growth vectors and estimate addressable size.", "answers" :
                                  [
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]}
                                  ]
                                },
                                { "questionid" : "id2","questiontitle": "Define the needs of the customers and the value we will deliver to the customers - customer pain and our solution", "answers" :
                                  [
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]}
                                  ]
                                 },
                                { "questionid" : "id3","questiontitle": "Define the competitor landscape" , "answers" :
                                  [
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]},
                                      {"answertext" : "an answer here", "answerlink": "", "answers": [
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"},
                                          {"answertext": "answer text here", "answerlink": "http://google.com"}
                                      ]}
                                  ]}
                            ]
                        },

实现这一目标的最佳方法是什么？我是否通过使用大量的字符串连接来构建这个json的路径，或者使用PHP内置的JSON工具是否可行？

Answer 1

  

我是否通过使用大量字符串连接来构建此json的路径

没有。永远不要通过将字符串拼凑在一起来构建JSON。

  

或使用PHP的内置JSON工具是否可行？

是

在PHP中构建数据结构。有关具体方法取决于您从哪里获取数据。

完成后，将其传递给json_encode。

Answer 2

你从不使用字符串函数来构建JSON！

创建一个数组（或stdClass对象）和json_encode()它。

Answer 3

使用数组来构造数据，然后使用json_encode将其转换为JSON。 JSON Encode documentation

Answer 4

<?php echo json_encode($yourArray); ?>

Answer 5

使用json_decode，如果您希望将其作为数组添加true作为第二个参数。