Question

我遇到了如何在json_encode中迭代数组的问题。

我做了ajax POST，在那里我有一个循环代码，它可以做＆＃34;数组推送＆＃34;在jQuery中，类似这样：

 $(this).closest('tr.header').nextUntil('.header').each(function(){
            i++;
            var forms="<form method='POST'>"+$(this).html()+'</form>';
            data.push($(forms).serializeArray());           
         });

所以当我把它传递给我的控制器/其他页面时，我这样做：

  $dataList = json_encode($this->input->post("form"));  

  echo $dataList ;

输出是：

 [
   [{"name":"category_1", "values":"packages"},
    {"name":"PK_1", "values": "1"}
   ],
   [{"name":"category_2", "value":"products"},
    {"name":"PK_2", "value": "3"}
   ]
 ]

我试过这样做：

  foreach ($dataList as $data) {                            
     echo $data . "\n";                                 
  }

但只是在foreach上给我错误。

提前致谢。

Answer 1

对于package pkg is type output_t is array(0 to 9) of integer; -- Just change size constant output : output_t; -- Value assign is deferred end package; library std; use std.textio.all; package body pkg is -- Entries in output without value in file are assigned to 0 impure function output_init return output_t is file vec_file: text open read_mode is "mytext"; variable iline: line; variable data_read: integer; variable x: integer := 0; variable res_t : output_t := (others => 0); begin while not endfile (vec_file) loop readline (vec_file, iline); read(iline,data_read); res_t(x) := data_read; x := x + 1; end loop; return res_t; end function; constant output : output_t := output_init; end package body;输出，您需要使用array

对其进行解码

这是示例代码。

json_decode()

Answer 2

只需解码字符串并循环创建的数组。

  <?php 
$a = '[
    [{"name":"category_1", "values":"packages"},
     {"name":"PK_1", "values": "1"}
    ],
    [{"name":"category_2", "value":"products"},
     {"name":"PK_2", "value": "3"}
    ]
  ]';
    echo '<pre>';
    $res = json_decode($a, true);

    $newArr = array();
    foreach($res as $data => $val)
    {

        foreach($val as $k=>$value){
            $value=array_values($value);
          echo 'Name => ' . $value[0] . ' Value => ' . $value[1] . '<br/>';
        }

    }


?>

在PHP中迭代json_encode数组

2 个答案: