下載zip PHP

Question

我想要一個zip文件（我不知道大小和名稱之前）與請求xml，返回一個zip文件。我想下載它，但有時會下載它（16mb左右）有時不會（2mb或4mb或1mb）我不知道爲什麼。

這是我的代碼：

$ch2=curl_init(); 
curl_setopt($ch2, CURLOPT_URL, $this->URL); 
curl_setopt($ch2, CURLOPT_TIMEOUT, 5040); 
curl_setopt($ch2, CURLOPT_HEADER, 0); 
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch2, CURLOPT_POST, 1); 
curl_setopt($ch2, CURLOPT_POSTFIELDS,$this->XMLRequest); 
curl_setopt($ch2, CURLOPT_SSL_VERIFYHOST, 1); 
curl_setopt($ch2, CURLOPT_SSL_VERIFYPEER, FALSE); 
curl_setopt($ch2, CURLOPT_SSLVERSION, 3); 
curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, true); 

$xml = curl_exec($ch2); 

curl_close($ch2); 
$file2 = fopen('upload/item.zip','w+'); 
fwrite($file2, $xml); 
fclose($file2); 

我也曾嘗試：

file_put_contents('upload/item.zip', $xml); 

有人能幫助我嗎？

Answer 1

嘗試CURLOPT_FILE至download large file？

set_time_limit(0); //prevent timeout 

$ch2=curl_init(); 
$file2 = fopen('upload/item.zip','w+'); 
curl_setopt($ch2, CURLOPT_URL, $this->URL); 

curl_setopt($ch2, CURLOPT_FILE, $file2); //auto write to file 

curl_setopt($ch2, CURLOPT_TIMEOUT, 5040); 
curl_setopt($ch2, CURLOPT_POST, 1); 
curl_setopt($ch2, CURLOPT_POSTFIELDS,$this->XMLRequest); 
# don't use this. please verify your host & peer properly :) 
# curl_setopt($ch2, CURLOPT_SSL_VERIFYHOST, 1); 
# curl_setopt($ch2, CURLOPT_SSL_VERIFYPEER, FALSE); 
curl_setopt($ch2, CURLOPT_SSLVERSION, 3); 
curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, true); 

curl_exec($ch2); 

curl_close($ch2); 
fclose($file2); 

編輯：

注：由於@bansi指出的那樣，你可能需要驗證的文件，文件大小，curl_error等