解析php多线程下载远程多个文件

<div class="codetitle"><a style="CURSOR: pointer" data="77962" class="copybut" id="copybut77962" onclick="doCopy('code77962')"> 代码如下:<div class="codebody" id="code77962">
function remote($urls,$name = '',$path = '',$dir = './images/') {
if (!is_array($urls) or count($urls) == 0) {
return false;
}
dmkdir($dir);
$curl = $text = array();
foreach($urls as $k => $v) {
if (!empty($v) && preg_match("~^http~i",$v)) {
$nurl[$k] = trim(str_replace(' ',"%20",$v));
$curl[$k] = curl_init($nurl[$k]);
curl_setopt($curl[$k],CURLOPT_IPRESOLVE,CURL_IPRESOLVE_V4 );
curl_setopt($curl[$k],CURLOPT_RETURNTRANSFER,1);
curl_setopt($curl[$k],CURLOPT_HEADER,0);
curl_setopt($curl[$k],CURLOPT_CONNECTTIMEOUT,20);
if(!isset($handle)){
$handle = curl_multi_init();
}
curl_multi_add_handle($handle,$curl[$k]);
}
continue ;
}
$active = null;
do{
$mrc = @curl_multi_exec($handle,$active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
while ($active && $mrc == CURLM_OK) {
if (curl_multi_select($handle) != -1) {
do {
$mrc = curl_multi_exec($handle,$active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
}
}
foreach ($curl as $k => $v) {
if (curl_error($curl[$k]) == "") {
if ($k == 0) {
$fname[$k] = strtolower($name . '.' . pathinfo($urls[$k],PATHINFOEXTENSION));
} else {
$fname[$k] = strtolower($name . '' . $k . '.' . pathinfo($urls[$k],PATHINFO_EXTENSION));
}
$text[$k] = (string) curl_multi_getcontent($curl[$k]);
$filedir[$k] = $dir.'/' . $fname[$k];
if (file_put_contents($filedir[$k],$text[$k])) {
$filepath[$k] = $path . $fname[$k];
}
}
curl_multi_remove_handle($handle,$curl[$k]);
curl_close($curl[$k]);
}
curl_multi_close($handle);
return $filepath;
}

（编辑：李大同）

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