PHP的德code JSON [英] PHP- Decode JSON

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本文介绍了PHP的德code JSON的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有以下脚本获得一个API的搜索结果,然后切片阵列和转储,我有麻烦了JSON解码成一个阵列,它返回阵列(0){
}

这是一个词preSS短code

下面是从API得到了JSON的示例:

  [
  {
    酒吧code:000015426950,
    名:卡伦的牛仔,
    作者:安安,
    author_last:马丁,
    出版人:纽约:学术,C2000。
    year_pub:,
    版本:,
    类型: ,
    结帐:走出去,
    系列:,
    callnum:MAR,
    虚构:真,
    in_house:假,
    时间戳:1355835387,
    outto:000008388615,
    交货期:1372005722,
    ISBN:059052528X
    媒体类型: ,
    打印:假,
    BOXID:2147483647,
    UID:10,
    印:
  },
  {
    酒吧code:000015426949,
    名:Karen的溜溜球,
    作家:安M,
    author_last:马丁,
    出版人:纽约:学术,C2000。
    year_pub:,
    版本:,
    类型: ,
    结帐:走出去,
    系列:,
    callnum:MAR,
    虚构:真,
    in_house:假,
    时间戳:1355835343,
    outto:000008388615,
    交货期:1373216918,
    ISBN:0590525115,
    媒体类型: ,
    打印:假,
    BOXID:,
    UID:10,
    印:
  },
...
  }
]

下面是code用于获取JSON和分页它:

 函数book_search_form(){
?>
<形式方法='得到'><输入类型=文本名称='searchvalue'值='&LT ;?如果(使用isset($ _ GET ['searchvalue']))回声$ _GET ['searchvalue'];?>' />&安培; NBSP;<输入类型=提交值=搜索/><输入类型=隐藏的名字='页次'值=1/>< /表>
< BR>
< PHP
如果(使用isset($ _ GET ['页次'])及和放大器;使用isset($ _ GET ['searchvalue']))
{
$页= $ _ GET ['页次'];
$ searchvalue = $ _GET ['searchvalue']; //从您的网址获得页面的价值
$ recordsPerPage = 10; //你想让你的页面上的记录数
$ api_url = get_option('api_url');
    $ API_KEY = get_option('API_KEY');
    $数据=的file_get_contents($ api_url /电子书/ index.php文件/名/ $ searchvalue键= 2513619352?);
    $阵列=(阵列)json_de code($的数据);$指数=($页* $ recordsPerPage)-1;
$ recordsToBeDisplayed = array_slice($数组$指数,$ recordsPerPage); //这个数组包含了所有你想在页面上显示的记录;    $ TOTAL_PAGES = CEIL(计数($数组)/ $ recordsPerPage);
    }
其他{//使用缺省值}
?>
< HTML和GT; ...<身体GT;< D​​IV ID =记载>
&LT ;?
呼应'< pre>';
回声$ recordsToBeDisplayed;
呼应'< / pre>';>< - !用上面创建显示记录的阵列 - >
    < / DIV>
< D​​IV ID =分页>
&LT ;?
为($ J = 1; $ J< = $ TOTAL_PAGES; $ J ++){
                    如果(附加$ J $ ==页)
                   {&GT?;                   &LT;李风格=显示:内联;&GT;&LT;一href=\"?searchvalue=&pagenum=<?=$j?>\"><u><?=$j?></u></a></li>
                   &LT;}其他{&GT?;
                        &LT;李风格=???searchvalue =安培;页次=&LT; = $ J&gt;中?显示在线;&GT;&LT A HREF =&GT;&LT; = $ J&GT;&LT; / A&GT;&LT; /李&GT;
                   &LT;?}}&GT;
&LT; / DIV&GT;
&LT; PHP
}


解决方案

尝试 json_de $ C $ç

  $阵列= json_de code($的数据,真实);

然后你会得到一个数组,而不是一个对象。

示例#1 json_de code()例子

 &LT; PHP
$ JSON ='{一:1,B:2,C:3,D:4,e的:5}';后续代码var_dump(json_de code($ JSON));
后续代码var_dump(json_de code($ JSON,真实));?&GT;

上例将输出:

 对象(stdClass的)#1(5){
    [一] =&GT; INT(1)
    [B] =&GT; INT(2)
    [C] =&GT; INT(3)
    [D] =&GT; INT(4)
    [E] =&GT; INT(5)
}阵列(5){
    [一] =&GT; INT(1)
    [B] =&GT; INT(2)
    [C] =&GT; INT(3)
    [D] =&GT; INT(4)
    [E] =&GT; INT(5)
}

I have the following script to get search results from an API and then slice the array and dump it, I am having trouble decoding the JSON into an array, it returns Array(0) { } It is a wordpress shortcode

Here is a sample of the Json that is gotten from the api:

[
  {
    "barcode": "000015426950",
    "name": "Karen's cowboy",
    "author": "Ann",
    "author_last": "Martin",
    "publisher": "New York : Scholastic, c2000.",
    "year_pub": "",
    "edition": "",
    "genre": "",
    "checkout": "out",
    "series": "",
    "callnum": "MAR",
    "fiction": "true",
    "in_house": "false",
    "timestamp": "1355835387",
    "outto": "000008388615",
    "duedate": "1372005722",
    "ISBN": "059052528X",
    "media_type": "",
    "print": "false",
    "BOXID": "2147483647",
    "uid": "10",
    "printed": ""
  },
  {
    "barcode": "000015426949",
    "name": "Karen's yo-yo",
    "author": "Ann M",
    "author_last": "Martin",
    "publisher": "New York : Scholastic, c2000.",
    "year_pub": "",
    "edition": "",
    "genre": "",
    "checkout": "out",
    "series": "",
    "callnum": "MAR",
    "fiction": "true",
    "in_house": "false",
    "timestamp": "1355835343",
    "outto": "000008388615",
    "duedate": "1373216918",
    "ISBN": "0590525115",
    "media_type": "",
    "print": "false",
    "BOXID": "",
    "uid": "10",
    "printed": ""
  },
...
  }
]

Here is the code used to get the JSON and paginate it,:

function book_search_form() {
?>
<form method='get'><input type='text' name='searchvalue' value='<? if (isset($_GET['searchvalue'])) echo $_GET['searchvalue'];?>' />&nbsp;<input type='submit' value='Search' /><input type='hidden' name='pagenum' value='1' /></form>
<br>
<?php 
if(isset($_GET['pagenum']) && isset($_GET['searchvalue']))
{
$page=$_GET['pagenum'];
$searchvalue = $_GET['searchvalue'];   // get the value of the page from your url
$recordsPerPage=10; // number of records you want on your page
$api_url = get_option('api_url');
    $api_key = get_option('api_key');
    $data = file_get_contents("$api_url/book/index.php/name/$searchvalue?key=2513619352");
    $array = (array)json_decode($data);

$index=($page*$recordsPerPage)-1;
$recordsToBeDisplayed = array_slice($array,$index,$recordsPerPage);// this array contains all the records you would want to display on a page;



    $total_pages=ceil(count($array)/$recordsPerPage);
    }
else { 

//use default values

}
?>
<html>...<body><div id="records">
<?
echo '<pre>';
echo $recordsToBeDisplayed;
echo '</pre>';?><!-- use the array created above to display records -->
    </div>
<div id="pagination">
<?
for($j=1;$j<=$total_pages;$j++){
                    if($j==$page)
                   {?>

                   <li style="display: inline;"><a href="?searchvalue=&pagenum=<?=$j?>"><u><?=$j?></u></a></li>
                   <?}else{?>
                        <li style="display: inline;"><a href="?searchvalue=&pagenum=<?=$j?>"><?=$j?></a></li>


                   <?}}?>
</div>
<?php


}

解决方案

Try json_decode

$array = json_decode($data, true);

Then you'll get an array instead of an object.

Example #1 json_decode() examples

<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

var_dump(json_decode($json));
var_dump(json_decode($json, true));

?>

The above example will output:

object(stdClass)#1 (5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

array(5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

这篇关于PHP的德code JSON的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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