我有这个查询wordpress数据库表的函数：
public function generateJson() {
if (isset($_POST['update_json'])) {
global $wpdb;
$map_rows = $wpdb->get_results(
'select f.floor_id, f.floor_title,
f.floor_map,m.id,m.type,m.title,
m.about,m.description,m.icon,m.link,
m.xcord,m.ycord,m.type,m.link
from wp_infokiosksfloors f,
wp_infokiosksmap m
where f.floor_id = m.floor');
// json_encode($args);
$map = array();
$args = array();
foreach ($map_rows as $locations => $location) {
//$map[] = $value->id;
$args= [
'mapwidth' => '800',
'mapheight' => '600',
'level' => array([
'id' =>$location->floor_id,
'title' => $location->floor_title,
'map' => $location->floor_map,
"locations" => array([
'id' => $location->id,
'title' => $location->title,
'about' => $location->about,
'description' => $location->description,
'subcategory' =>$location->type,
'link' => $location->link,
'icon' => $location->icon,
'x' => $location->xcord,
'y' => $location->ycord
])
])
];
echo json_encode($args, JSON_PRETTY_PRINT.JSON_UNESCAPED_SLASHES);
}
echo "<h4 style='color:red'>Map locations successfully updated</h4>";
}
$fp = '../wp-content/themes/xxx/js/map/infomap.json';
return file_put_contents($fp, json_encode($args, JSON_PRETTY_PRINT.JSON_UNESCAPED_SLASHES));
}
我希望它输出类似于以下格式的json：
{
"mapwidth": "800",
"mapheight": "600",
"levels": [
{
"id": "second",
"title": "Second Floor",
"map": "../img/map/02-plain.svg",
"minimap": "images/mall/mall-basement-small.jpg",
"locations": [
{
"id": "gateA",
"title": "Gate 15",
"about": "Gate 15",
"description": "Gate 15",
"category": "flights",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"link":"",
"x": "0.6342",
"y": "0.4433"
},
{
"id": "gateb",
"title": "Gate 16",
"about": "Gate 16",
"description": "Gate 16",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.5273",
"y": "0.5323"
},
{
"id": "gatec",
"title": "Gate 18",
"about": "Gate 18",
"description": "Gate 18",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.3923",
"y": "0.6170"
},
{
"id": "gated",
"title": "Gate 19",
"about": "Gate 19",
"description": "Gate 19",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.3720",
"y": "0.6807"
},
{
"id": "gatee",
"title": "Gate 20",
"about": "Gate 20",
"description": "Gate 20",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.4117",
"y": "0.7462"
},
{
"id": "gatef",
"title": "Gate 21",
"about": "Gate 21",
"description": "Gate 21",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.5547",
"y": "0.5846"
},
{
"id": "gateg",
"title": "Gate 22",
"about": "Gate 22",
"description": "Gate 22",
"category": "gate",
"subcategory": "allgate",
"icon": "../img/map/icon-flight-departures.svg",
"x": "0.6190",
"y": "0.5272"
},
{
"id": "jcafe",
"title": "Java Cafe",
"about": "Luke's Java Cafe",
"description": "Has the best of both international and local coffee",
"category": "restaurant",
"subcategory": "all-restaurant",
"icon": "../img/map/icon-leisure-bar.svg",
"link": "",
"x": "0.7079",
"y": "0.4009"
},
{
"id": "jcafe2",
"title": "Java Cafe",
"about": "Luke's Java Cafe",
"description": "Has the best of both international and local coffee",
"category": "restaurant",
"subcategory": "all-restaurant",
"icon": "../img/map/icon-leisure-bar.svg",
"link": "",
"x": "0.4794",
"y": "0.6521"
},
{
"id": "jcafe3",
"title": "Java Cafe",
"about": "Luke's Java Cafe",
"description": "Has the best of both international and local coffee",
"category": "restaurant",
"subcategory": "all-restaurant",
"icon": "../img/map/icon-leisure-bar.svg",
"link": "",
"x": "0.6775",
"y": "0.2986"
},
{
"id": "toilet",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"icon": "../img/map/icon-toilet.svg",
"x": "0.6680",
"y": "0.2049"
},
{
"id": "toilet1",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.6572",
"y": "0.4097"
},
{
"id": "toilet2",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.8553",
"y": "0.5480"
},
{
"id": "toilet3",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.8851",
"y": "0.5862"
},
{
"id": "toilet5",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.6562",
"y": "0.5049"
},
{
"id": "toilet6",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.4042",
"y": "0.6744"
},
{
"id": "infodesk",
"title": "Information Desk",
"about": "Enquiries",
"description": "Ask all you need to know",
"category": "services",
"icon": "../img/map/icon-infocenter.svg",
"x": "0.7312",
"y": "0.3607"
},
{
"id": "counter1",
"title": "Counter",
"about": "Counter",
"description": "Counter",
"category": "services",
"icon": "../img/map/icon-counter-bpass.svg",
"x": "0.5808",
"y": "0.5613"
},
{
"id": "counter2",
"title": "Counter",
"about": "Counter",
"description": "Counter",
"category": "services",
"icon": "../img/map/icon-counter-bpass.svg",
"x": "0.5228",
"y": "0.6109"
},
{
"id": "counter3",
"title": "Counter",
"about": "Counter",
"description": "Counter",
"category": "services",
"icon": "../img/map/icon-counter-bpass.svg",
"x": "0.4488",
"y": "0.6800"
}
]
},
{
"id": "third",
"title": "Third Floor",
"map": "../img/map/03-plain.svg",
"minimap": "images/mall/mall-basement-small.jpg",
"locations": [
{
"id": "viplounge",
"title": "Vip Lounge",
"about": "VIP Lounge: Restricted area",
"description": "Entry to this location is under restriction",
"category": "restaurant",
"icon": "../img/map/icon-viplounge.svg",
"link": "",
"x": "0.4484",
"y": "0.7046"
},
{
"id": "jcafe4",
"title": "Java Cafe",
"about": "Luke's Java Cafe",
"description": "Has the best of both international and local coffee",
"category": "restaurant",
"subcategory": "all-restaurant",
"icon": "../img/map/icon-leisure-bar.svg",
"link": "",
"x": "0.6775",
"y": "0.2986"
},
{
"id": "toilet9",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.7252",
"y": "0.4460"
},
{
"id": "toilet10",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.4699",
"y": "0.5975"
}
]
},
{
"id": "first",
"title": "First Floor",
"map": "../img/map/01-plain.svg",
"minimap": "images/mall/mall-first-small.jpg",
"locations": [
{
"id": "shopfirst",
"title": "Darwy Shopping Collection",
"about": "All kinds of shopping",
"description": "Find ",
"category": "restaurant",
"icon": "../img/map/icon-leisure-shop.svg",
"link": "",
"x": "0.5402",
"y": "0.5561"
},
{
"id": "jcafe5",
"title": "Java Cafe",
"about": "Luke's Java Cafe",
"description": "Has the best of both international and local coffee",
"category": "restaurant",
"subcategory": "all-restaurant",
"icon": "../img/map/icon-leisure-bar.svg",
"link": "",
"x": "0.4090",
"y": "0.7126"
},
{
"id": "toilet7",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.8863",
"y": "0.4737"
},
{
"id": "toilet8",
"title": "Toilets",
"about": "Toilets, Washrooms",
"description": "Clean and nice toilets",
"category": "services",
"subcategory": "all-toilet",
"icon": "../img/map/icon-toilet.svg",
"x": "0.4687",
"y": "0.5995"
}
]
}
]
}
只有第一部分显示如下：
{
"mapwidth": "800",
"mapheight": "600",
"level": [{
"id": "Second",
"title": "Second Floor",
"map": wp-content/uploads/2014/08/hotel.jpg",
"locations": [{
"id": 1,
"title": "My Barber",
"about": "Barber shop",
"description": "Barber shop",
"subcategory": "ATMs",
"link": "",
"icon": "wp-content/uploads/2014/08/hotel.jpg",
"x": "54.75",
"y": "64.55"
}]
}]
}
有人可以帮我解决这个问题吗？
答案 0 :(得分：2)
您需要将$args= [更改为$args[] = [。
如果是$args= [，则每次在循环中替换$args的值。如果是$args[] = [，则会向$args数组添加新项目。