您可以按照以下方式进行操作。

PHP

$query = 'SELECt * FROM picture order by rand() LIMIT 10';$res = mysql_query($query);$pictures = array();while ($row = mysql_fetch_array($res)) {  $picture = array(    "pic_location" => $row['pic_location'],    "name"         => $row['name'],    "age"          => $row['age'],    "gender"       => $row['gender']  );  $pictures[] = $picture;}echo json_enpre($pictures);

JS

...$.ajax({  ...  dataType: "json",  ...  success: function(pictures){    $.each(pictures, function(idx, picture){      // picture.pic_location      // picture.name      // picture.age      // picture.gender    });  }});...