我的结果是json数组格式,我想将我的数组结果更改为json字符串格式。我该怎么做呢。请帮助..我不知道我怎么做这个:(。新到json 我作为json数组的结果是这样的
[[ “Date.UTC(2011,09,03)”, “1”],[ “Date.UTC(2011,09,06)”, “53”],[“Date.UTC(2011年, 09,07)”, “178”],[ “Date.UTC(2011,09,08)”, “305”],[ “Date.UTC(2011,09,09)”, “152”],[ “Date.UTC(2011,09,11)”, “20”],[ “Date.UTC(2011,09,12)”, “239”],[ “Date.UTC(2011,09,13)” , “25”],[ “Date.UTC(2011,09,14)”, “316”],[ “Date.UTC(2011,09,15)”, “169”],[“Date.UTC( 2011,09,16)”, “20”],[ “Date.UTC(2011,09,19)”, “126”]
我的代码
$mysql_connect = mysql_connect($db_host, $db_user, $db_pword, $db_name);
$query = "Select DATE_FORMAT(`timestamp`,'%Y,%m,%d') as date, Count(*) as frequency from mytable group by date_format(`timestamp`,'%Y,%m,%d')";
if (!$mysql_connect) die("unable to connect to database: " . mysql_error());
@mysql_select_db($db_name) or die( "Unable to select database");
$result = mysql_query($query);
$response = array();
if($result === FALSE)
{
die(mysql_error()); // TODO: better error handling
}
while($row=mysql_fetch_array($result))
{
$date = "Date.UTC(".$row ['date'].")";
$frequency =$row['frequency'];
$response[] = array ($date,$frequency);
}
JSONArray jArray;
String s = jArray.toString();
mysql_close($mysql_connect);