[英]How do I use cURL/PHP to dump the current twitter trending topics into mySQL
嘗試每隔幾個小時運行一次cron作業,該作業會閱讀此處列出的當前Twitter趨勢主題:
http://search.twitter.com/trends.json
然后將十大趨勢轉儲到服務器上的mySQL表中
這個怎么做? 謝謝
這里有一些指針可以幫助您:
例如,可能會執行以下操作(非常基本的示例) :
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://search.twitter.com/trends.json");
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$json = curl_exec($ch);
curl_close($ch);
// $json contains the data you want
var_dump($json);
您將獲得這種輸出:
string '{"as_of":"Fri, 21 Aug 2009 20:59:54 +0000","trends":[{"name":"Follow Friday","url":"http:\/\/search.twitter.com\/search?q=%22Follow+Friday%22"},{"name":"#BrutalLegend","url":"http:\/\/search.twitter.com\/search?q=%23BrutalLegend"},{"name":"#shoutout","url":"http:\/\/search.twitter.com\/search?q=%23shoutout"},{"name":"#fact","url":"http:\/\/search.twitter.com\/search?q=%23fact"},{"name":"Inglourious","url":"http:\/\/search.twitter.com\/search?q=Inglourious"},{"name":"Which Horror Movie","url":"http:\/\/search.twitter.com\/search?q=%22Which+Horror+Movie%22"},{"name":"Cataclysm","url":"http:\/\/search.twitter.com\/search?q=Cataclysm"},{"name":"Inglourious Basterds","url":"http:\/\/search.twitter.com\/search?q=%22Inglourious+Basterds%22+OR+%22Inglorious+Basterds%22"},{"name":"District 9","url":"http:\/\/search.twitter.com\/search?q=%22District+9%22"},{"name":"Twitter Besides","url":"http:\/\/search.twitter.com\/search?q=%22Twitter+Besides%22"}]}' (length=955)
當然,您可能需要設置其他幾個選項; 有關完整列表,請查看curl_setopt
的文檔。
解析JSON字符串:
如果您使用的是PHP> = 5.2,則可以使用json_decode
解析json數據:
$data = json_decode($json);
var_dump($data);
然后,您將獲得如下內容:
object(stdClass)[1]
public 'as_of' => string 'Fri, 21 Aug 2009 21:01:48 +0000' (length=31)
public 'trends' =>
array
0 =>
object(stdClass)[2]
public 'name' => string 'Follow Friday' (length=13)
public 'url' => string 'http://search.twitter.com/search?q=%22Follow+Friday%22' (length=54)
1 =>
object(stdClass)[3]
public 'name' => string '#BrutalLegend' (length=13)
public 'url' => string 'http://search.twitter.com/search?q=%23BrutalLegend' (length=50)
2 =>
object(stdClass)[4]
public 'name' => string '#shoutout' (length=9)
public 'url' => string 'http://search.twitter.com/search?q=%23shoutout' (length=46)
3 =>
object(stdClass)[5]
public 'name' => string '#fact' (length=5)
public 'url' => string 'http://search.twitter.com/search?q=%23fact' (length=42)
4 =>
object(stdClass)[6]
public 'name' => string 'Inglourious' (length=11)
public 'url' => string 'http://search.twitter.com/search?q=Inglourious' (length=46)
5 =>
object(stdClass)[7]
public 'name' => string 'Cataclysm' (length=9)
public 'url' => string 'http://search.twitter.com/search?q=Cataclysm' (length=44)
6 =>
object(stdClass)[8]
public 'name' => string 'Which Horror Movie' (length=18)
public 'url' => string 'http://search.twitter.com/search?q=%22Which+Horror+Movie%22' (length=59)
7 =>
object(stdClass)[9]
public 'name' => string 'Inglourious Basterds' (length=20)
public 'url' => string 'http://search.twitter.com/search?q=%22Inglourious+Basterds%22+OR+%22Inglorious+Basterds%22' (length=90)
8 =>
object(stdClass)[10]
public 'name' => string 'District 9' (length=10)
public 'url' => string 'http://search.twitter.com/search?q=%22District+9%22' (length=51)
9 =>
object(stdClass)[11]
public 'name' => string 'Hurricane Bill' (length=14)
public 'url' => string 'http://search.twitter.com/search?q=%22Hurricane+Bill%22' (length=55)
這包含從twitter獲得的全部數據。
將數據插入數據庫:
現在,您必須遍歷“趨勢”數組,並針對每一行將其插入到MySQL數據庫中。
為此,您可以使用:
使用准備好的語句也可能有幫助( mysqli , pdo );-)
無論如何,如果您沒有使用准備好的語句,則必須使用mysqli_real_escape_string
或PDO::quote
轉義數據。
在這里,您當然需要已經有了一個具有正確結構的表格; 我還假設您知道如何在MySQL表中插入數據。
如果您有更具體的問題,請不要猶豫,使用一些您正在使用的不起作用的代碼示例(當然還有對不起作用的描述/所得到的錯誤消息) !
玩得開心 !
玩得開心。<?php
$curl = curl_init(); curl_setopt_array($curl, Array( /* CURLOPT_HEADER => true, CURLOPT_POSTFIELDS => $postdata, CURLOPT_POST => $method == 'POST', CURLOPT_HTTPHEADER => $headers, CURLOPT_USERAGENT => "Mozil.....", */ CURLOPT_URL => "http://search.twitter.com/trends.json", CURLOPT_TIMEOUT => 300, CURLOPT_CONNECTTIMEOUT => 60, CURLOPT_RETURNTRANSFER => true, CURLOPT_SSL_VERIFYHOST => false, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_ENCODING => 'gzip,deflate' )); $json = curl_exec($curl); $json = json_decode($json); echo "<pre>"; print_r($json);
?>
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