我目前正在使用Yelp API v3并正在测试他们的一些示例代码。我之前从未使用过PHP，所以很容易让人感到困惑，但我只是想知道，我在哪里设置的术语和位置等于这个脚本中的用户输入？假设我在html中有一个术语和位置的输入，在这个脚本中我可以做$ term = inputTerm和$ location = inputLocation？
`#!/usr/bin/php
<?php
/**
* Yelp Fusion API code sample.
*
* This program demonstrates the capability of the Yelp Fusion API
* by using the Business Search API to query for businesses by a
* search term and location, and the Business API to query additional
* information about the top result from the search query.
*
* Please refer to http://www.yelp.com/developers/v3/documentation
* for the API documentation.
*
* Sample usage of the program:
* `php sample.php --term="dinner" --location="San Francisco, CA"`
*/
// OAuth credential placeholders that must be filled in by users.
// You can find them on
// https://www.yelp.com/developers/v3/manage_app
$CLIENT_ID = "abcd";
$CLIENT_SECRET = "abcd";
// Complain if credentials haven't been filled out.
assert($CLIENT_ID, "Please supply your client_id.");
assert($CLIENT_SECRET, "Please supply your client_secret.");
// API constants, you shouldn't have to change these.
$API_HOST = "https://api.yelp.com";
$SEARCH_PATH = "/v3/businesses/search";
$BUSINESS_PATH = "/v3/businesses/"; // Business ID will come after slash.
$TOKEN_PATH = "/oauth2/token";
$GRANT_TYPE = "client_credentials";
// Defaults for our simple example.
$DEFAULT_TERM = "dinner";
$DEFAULT_LOCATION = "San Francisco, CA";
$SEARCH_LIMIT = 10;
function getQuery(){
echo $_GET['latlon'];
//echo $_GET['q'];
$query = $_GET['q'];
//break the query up into parts
$first_space= strpos($query, " ");
$term = substr($query, 0, $first_space);
echo $term;
}
/**
* Given a bearer token, send a GET request to the API.
*
* @return OAuth bearer token, obtained using client_id and client_secret.
*/
function obtain_bearer_token() {
try {
# Using the built-in cURL library for easiest installation.
# Extension library HttpRequest would also work here.
$curl = curl_init();
if (FALSE === $curl)
throw new Exception('Failed to initialize');
$postfields = "client_id=" . $GLOBALS['CLIENT_ID'] .
"&client_secret=" . $GLOBALS['CLIENT_SECRET'] .
"&grant_type=" . $GLOBALS['GRANT_TYPE'];
curl_setopt_array($curl, array(
CURLOPT_URL => $GLOBALS['API_HOST'] . $GLOBALS['TOKEN_PATH'],
CURLOPT_RETURNTRANSFER => true, // Capture response.
CURLOPT_ENCODING => "", // Accept gzip/deflate/whatever.
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_HTTPHEADER => array(
"cache-control: no-cache",
"content-type: application/x-www-form-urlencoded",
),
));
$response = curl_exec($curl);
if (FALSE === $response)
throw new Exception(curl_error($curl), curl_errno($curl));
$http_status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if (200 != $http_status)
throw new Exception($response, $http_status);
curl_close($curl);
} catch(Exception $e) {
trigger_error(sprintf(
'Curl failed with error #%d: %s',
$e->getCode(), $e->getMessage()),
E_USER_ERROR);
}
$body = json_decode($response);
$bearer_token = $body->access_token;
return $bearer_token;
}
/**
* Makes a request to the Yelp API and returns the response
*
* @param $bearer_token API bearer token from obtain_bearer_token
* @param $host The domain host of the API
* @param $path The path of the API after the domain.
* @param $url_params Array of query-string parameters.
* @return The JSON response from the request
*/
function request($bearer_token, $host, $path, $url_params = array()) {
// Send Yelp API Call
try {
$curl = curl_init();
if (FALSE === $curl)
throw new Exception('Failed to initialize');
$url = $host . $path . "?" . http_build_query($url_params);
curl_setopt_array($curl, array(
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true, // Capture response.
CURLOPT_ENCODING => "", // Accept gzip/deflate/whatever.
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => array(
"authorization: Bearer " . $bearer_token,
"cache-control: no-cache",
),
));
$response = curl_exec($curl);
if (FALSE === $response)
throw new Exception(curl_error($curl), curl_errno($curl));
$http_status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if (200 != $http_status)
throw new Exception($response, $http_status);
curl_close($curl);
} catch(Exception $e) {
trigger_error(sprintf(
'Curl failed with error #%d: %s',
$e->getCode(), $e->getMessage()),
E_USER_ERROR);
}
return $response;
}
/**
* Query the Search API by a search term and location
*
* @param $bearer_token API bearer token from obtain_bearer_token
* @param $term The search term passed to the API
* @param $location The search location passed to the API
* @return The JSON response from the request
*/
function search($bearer_token, $term, $location) {
$url_params = array();
$url_params['term'] = $term;
$url_params['location'] = $location;
$url_params['limit'] = $GLOBALS['SEARCH_LIMIT'];
return request($bearer_token, $GLOBALS['API_HOST'], $GLOBALS['SEARCH_PATH'], $url_params);
}
/**
* Query the Business API by business_id
*
* @param $bearer_token API bearer token from obtain_bearer_token
* @param $business_id The ID of the business to query
* @return The JSON response from the request
*/
function get_business($bearer_token, $business_id) {
$business_path = $GLOBALS['BUSINESS_PATH'] . urlencode($business_id);
return request($bearer_token, $GLOBALS['API_HOST'], $business_path);
}
/**
* Queries the API by the input values from the user
*
* @param $term The search term to query
* @param $location The location of the business to query
*/
function query_api($term, $location) {
$bearer_token = obtain_bearer_token();
$response = json_decode(search($bearer_token, $term, $location));
$business_id = $response->businesses[0]->id;
print sprintf(
"%d businesses found, querying business info for the top result \"%s\"\n\n",
count($response->businesses),
$business_id
);
$response = get_business($bearer_token, $business_id);
print sprintf("Result for business \"%s\" found:\n", $business_id);
$pretty_response = json_encode(json_decode($response), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
print "$pretty_response\n";
}
/**
* User input is handled here
*/
$longopts = array(
"term::",
"location::",
);
$options = getopt("", $longopts);
$term = $options['term'] ?: $GLOBALS['DEFAULT_TERM'];
$location = $options['location'] ?: $GLOBALS['DEFAULT_LOCATION'];
//getQuery();
query_api($term, $location);
?>`
答案 0 :(得分：0)
这样的事情会为你做到这一点。该示例并未考虑输入过滤，因此您首先需要mysql_real_escape输入。
// Defaults for our simple example.
$DEFAULT_TERM = "Dinner";
$DEFAULT_LOCATION = "White House, TN";
$SEARCH_LIMIT = 0;
$REVIEWS = 0;
if(isset($_GET['term'])) $DEFAULT_TERM = $_GET['term'];
if(isset($_GET['loc']) && $_GET['loc'] !='') $DEFAULT_LOCATION = $_GET['loc'] ;
if(isset($_GET['limit'])) $SEARCH_LIMIT = $_GET['limit'];
if(isset($_GET['reviews'])) $REVIEWS = $_GET['reviews'];
你的表单看起来像这样
<form action="/" method="get">
<input type="text" name="term" placeholder="search"/>
<input type="text" name="loc" placeholder="zipcode"/>
Results <select name="limit">
<option value="3">3</option>
<option value="5">5</option>
<option value="7">7</option>
<option value="9">9</option>
</select>
Show reviews <input type="checkbox" name="reviews" value="1"/>
<input type="submit"/>
</form>