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鸽子
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891天前<?php |
function curl_fetch($url, $timeout=3){ |
$ch = curl_init(); |
curl_setopt($ch, CURLOPT_URL, $url); |
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); |
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); |
$data = curl_exec($ch); |
$errno = curl_errno($ch); |
if ($errno>0) { |
$data = false; |
} |
curl_close($ch); |
return $data; |
} |
function microtime_float() |
{ |
list($usec, $sec) = explode(" ", microtime()); |
return ((float)$usec + (float)$sec); |
} |
$url_arr=array( |
"taobao"=>"http://www.taobao.com", |
"sohu"=>"http://www.sohu.com", |
"sina"=>"http://www.sina.com.cn", |
); |
$time_start = microtime_float(); |
$data=array(); |
foreach ($url_arr as $key=>$val) |
{ |
$data[$key]=curl_fetch($val); |
} |
$time_end = microtime_float(); |
$time = $time_end - $time_start; |
echo "耗时:{$time}"; |
?> |
