API:Allcategories
 | This page is part of the MediaWiki Action API documentation. |
| เวอร์ชันมีเดียวิกิ: | ≥ 1.12 |
GET request to list all categories that fit certain criteria relating to their titles.
This module can be used as a generator.
API documentation
ตัวอย่าง
GET request
Get a list of all categories, starting from "15th-century caliphs".
api.php?
Response
{
{
"batchcomplete": "",
"continue": {
"accontinue": "15th-century_churches_in_Denmark",
"continue": "-||"
},
"query": {
"allcategories": [
{
"*": "15th-century caliphs"
},
{
"*": "15th-century calligraphers"
},
{
"*": "15th-century card games"
},
...
]
}
}
รหัสตัวอย่าง
Python
#!/usr/bin/python3
"""
get_allcategories.py
MediaWiki API Demos
Demo of `Allcategories` module: Get all categories, starting from a
certain point, as ordered by category title.
MIT License
"""
import requests
S = requests.Session()
URL = "https://en.wikipedia.org/w/api.php"
PARAMS = {
"action": "query",
"format": "json",
"list": "allcategories",
"acfrom": "15th-century caliphs"
}
R = S.get(url=URL, params=PARAMS)
DATA = R.json()
CATEGORIES = DATA["query"]["allcategories"]
for cat in CATEGORIES:
print(cat["*"])
PHP
<?php
/*
get_allcategories.php
MediaWiki API Demos
Demo of `Allcategories` module: Get all categories, starting from a certian point, as ordered by category title.
MIT License
*/
$endPoint = "https://en.wikipedia.org/w/api.php";
$params = [
"action" => "query",
"format" => "json",
"list" => "allcategories",
"acfrom" => "15th-century caliphs"
];
$url = $endPoint . "?" . http_build_query( $params );
$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
$output = curl_exec( $ch );
curl_close( $ch );
$result = json_decode( $output, true );
foreach( $result["query"]["allcategories"] as $k => $v ) {
echo( $v["*"] . "\n" );
}
JavaScript
/*
get_allcategories.js
MediaWiki API Demos
Demo of `Allcategories` module: Get all categories, starting from a certain point, as ordered by category title.
MIT License
*/
var url = "https://en.wikipedia.org/w/api.php";
var params = {
action: "query",
format: "json",
list: "allcategories",
acfrom: "15th-century caliphs"
};
url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});
fetch(url)
.then(function(response){return response.json();})
.then(function(response) {
var categories = response.query.allcategories;
for (var cat in categories) {
console.log(categories[cat]["*"]);
}
})
.catch(function(error){console.log(error);});
MediaWiki JS
/*
get_allcategories.js
MediaWiki API Demos
Demo of `Allcategories` module: Get all categories,
starting from a certian point, as ordered by category title.
MIT License
*/
var params = {
action: 'query',
format: 'json',
list: 'allcategories',
acfrom: '15th-century caliphs'
},
api = new mw.Api();
api.get( params ).done( function ( data ) {
var categories = data.query.allcategories,
cat;
for ( cat in categories ) {
console.log( categories[ cat ][ '*' ] );
}
} );
บันทึกเพิ่มเติม
- This module differs from list=allpages&alnamespace=14 in that categories without descriptions will be listed, while redirects and pages where the category was never used will not.
- The response may include categories that were previously used but have since been deleted.
- Because the response may include categories that are deleted or otherwise empty, it is recommended to filter the list using
acmin=1, so as to only return categories containing one or more members.
ดูเพิ่ม
- API:Categorymembers - list pages which are members of a certain category.
- API:Categories - a
propmodule that gets all the categories associated with a particular page. - API:Allpages - another module that can access the category namespace.