捲曲輸出不顯示

Question

下面是我的代碼，但它沒有顯示輸出。現在我暫時將yahoo.com顯示爲curl輸出，但我的實際輸出url不同。任何人都可以告訴我代碼中有什麼問題？

<?php 
    $myurl = "www.yahoo.com"; 
    curl_setopt ($ch, CURLOPT_URL, $myurl); 
    curl_setopt ($ch, CURLOPT_HEADER, 0); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    $result= curl_exec ($ch); //execute and get the results 
    echo $result; //display the reuslt 
    curl_close($ch); 
?> 

Answer 1

試試這個：

//Add $ch = curl_init(); 
$ch = curl_init(); 

$myurl = "www.yahoo.com"; 
curl_setopt ($ch, CURLOPT_URL, $myurl); 
curl_setopt ($ch, CURLOPT_HEADER, 0); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
$result= curl_exec ($ch); //execute and get the results 
echo $result; //display the reuslt 
curl_close($ch); 

Answer 2

你不初始化捲曲使用這樣的：

<?php 

$myurl = "www.yahoo.com"; 
$ch = curl_init(); 
curl_setopt ($ch, CURLOPT_URL, $myurl); 
curl_setopt ($ch, CURLOPT_HEADER, 0); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
$result= curl_exec ($ch); //execute and get the results 
echo $result; //display the reuslt 
curl_close($ch); 
?>