深入file_get_contents函数抓取内容失败的原因分析

复制代码 代码如下:

< ?php
$file_contents = file_get_contents(‘');
echo $file_contents;
?>

复制代码 代码如下:

< ?php
$ch = curl_init();
$timeout = 5;
curl_setopt ($ch, CURLOPT_URL, ‘');
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);
echo $file_contents;
?>