如何顯示使用JSON和PHP從數據庫中獲取的特定數據

Question

我的代碼是

<?php /*My PHP/JSON 
              Code */
$con = mysql_connect("localhost","root","root");/*establish connection*/
if (!$con)
{
die('Could not connect: ' . mysql_error());
}

$con = mysql_connect("localhost","root","root");

mysql_select_db("TEACHER", $con);
$result = mysql_query("SELECT * from TEACHER") or die('Could not query');
$json = array();
if(mysql_num_rows($result)){
        $row=mysql_fetch_assoc($result);
    while($row=mysql_fetch_row($result)){
        $test_data[]=$row;
    }
    $json['employees']=$test_data;
}
$encoded = json_encode($json);
echo $encoded;
echo "<br />";
echo "<br />";
echo var_dump(json_decode($encoded));
echo "<br />";
echo "<br />";
$tmp_array = json_decode($encoded);

echo "List of Teachers";
echo "<br />";
echo "---------------------------------";
echo "<br />";
foreach($tmp_array->employees as $item)
{
    echo $item[0] . " " . $item[1];
    echo "<br />";
}
mysql_close($con);
?>

我的代碼的輸出是

{"employees":[["Glenn","Quagmire","33"],["Rakesh","Mittal","25"],["Nagraj","Kondikoppa","23"],["Kishore","K","28"],["Raghu","Dixit","35"],["Rajesh","Kulkarni","36"],["Aakash","Gupta","45"],["Sangmesh","Itgampalli","29"],["Siddu","C","48"],["Raju","Chidri","29"],["Ram","Kumar","58"],["Roopa","Patil","23"],["Jagdeesh","manthale","26"],["Satish","kharge","29"],["Shiv","Gada","26"],["Sheela","Kukotte","26"],["Ajay","K","23"],["Prakash","Nandi","23"],["Prasanna","Mumbai","28"],["Vishwa","Saineer","23"],["Arjun","sarja","55"]]}

object（stdClass）＃1（1）{[“” employees“] => array（21）{[0] => array（3）{[0] =>字符串（5）” Glenn“ [1] =>字符串（8）“ Quagmire” [2] =>字符串（2）“ 33”} [1] =>數組（3）{[0] =>字符串（6）“ Rakesh” [1] =>字符串（6） “ Mittal” [2] =>字符串（2）“ 25”} [2] =>數組（3）{[0] =>字符串（6）“ Nagraj” [1] =>字符串（10）“ Kondikoppa” [2] =>字符串（2）“ 23”} [3] =>數組（3）{[0] =>字符串（7）“ Kishore” [1] =>字符串（1）“ K” [2] =>字符串（2）“ 28”} [4] =>數組（3）{[0] =>字符串（5）“ Raghu” [1] =>字符串（5）“ Dixit” [2] =>字符串（2）“ 35”} [5] =>數組（3）{[0] =>字符串（6）“ Rajesh” [1] =>字符串（8）“ Kulkarni” [2] =>字符串（2） “ 36”} [6] => array（3）{[0] =>字符串（6）“ Aakash” [1] =>字符串（5）“ Gupta” [2] =>字符串（2）“ 45” } [7] =>數組（3）{[0] =>字符串（8）“ Sangmesh” [1] =>字符串（10）“ Itgampalli” [2] =>字符串（2）“ 29”} [8 ] => array（3）{[0] => string（5）“ Siddu” [1] => string（1）“ C” [2] => string（2）“ 48”} [9] => array（3）{[0] =>字符串（4）“ Raju” [1] =>字符串（6）“ Chidri” [2] =>字符串（2）“ 29”} [10] =>數組（3 ）{[0] =>字符串（3）“ Ram” [1] => s tring（5）“ Kumar” [2] =>字符串（2）“ 58”} [11] =>數組（3）{[0] =>字符串（5）“ Roopa” [1] =>字符串（5 ）“ Patil” [2] => string（2）“ 23”} [12] => array（3）{[0] => string（8）“ Jagdeesh” [1] => string（8）“ manthale “ [2] =>字符串（2）” 26“} [13] =>數組（3）{[0] =>字符串（6）” Satish“ [1] =>字符串（6）” kharge“ [2 ] =>字符串（2）“ 29”} [14] =>數組（3）{[0] =>字符串（4）“ Shiv” [1] =>字符串（4）“ Gada” [2] => string（2）“ 26”} [15] => array（3）{[0] => string（6）“ Sheela” [1] => string（7）“ Kukotte” [2] => string（2 ）“ 26”} [16] => array（3）{[0] =>字符串（4）“ Ajay” [1] =>字符串（1）“ K” [2] =>字符串（2）“ 23 “} [17] => array（3）{[0] => string（7）” Prakash“ [1] => string（5）” Nandi“ [2] => string（2）” 23“} [ 18] => array（3）{[0] => string（8）“ Prasanna” [1] => string（6）“孟買” [2] => string（2）“ 28”} [19] = > array（3）{[0] =>字符串（6）“ Vishwa” [1] =>字符串（7）“ Saineer” [2] =>字符串（2）“ 23”} [20] => array（ 3）{[0] =>字符串（5）“ Arjun” [1] =>字符串（5）“ sarja” [2] =>字符串（2）“ 55”}}}

教師名單

Glenn Quagmire Rakesh Mittal Nagraj Kondikoppa Kishore K Raghu Dixit Rajesh Kulkarni Aakash Gupta Sangmesh Itgampalli Siddu C Raju Chidri Ram Kumar Roopa Patil Jagdeesh manthale Satish kharge Shiv Gada Sheela Kukotteja Ajay K Prakash Nandi Prasash

Answer 1

1-首先解碼，使用json_decode

$tmp_array = json_decode($data);

2-循環

foreach($tmp_array->employees as $item)
    {
        echo $item[0] . "/" . $item[1] . "/" . $item[2];
    }

經過大腦測試的代碼。 :)

Answer 2

$decoded = json_decode($json);
foreach ($decoded->employees as $emp)
  printf("%s %s\n", $emp[0], $emp[1]);