file_get_contents函数不能使用的解决方法
有些主机服务商把php的allow_url_fopen选项是关闭了，就是没法直接使用file_get_contents来获取远程web页面的内容。那就是可以使用另外一个函数curl。 下面是file_get_contents和curl两个函数同样功能的不同写法 file_get_contents函数的使用示例: $file_contents = file_get_contents(http://www.ccvita.com/); 换成curl函数的使用示例: $ch = curl_init(); echo $file_contents; function vita_get_url_content($url) {
echo $file_contents;
?>
$timeout = 5;
curl_setopt ($ch, CURLOPT_URL, http://www.ccvita.com);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);
?>
利用function_exists函数来判断php是否支持一个函数可以轻松写出下面函数
if(function_exists(file_get_contents)) {
$file_contents = file_get_contents($url);
} else {
$ch = curl_init();
$timeout = 5;
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);
}
return $file_contents;
}
?>
其实上面的这个函数还有待商榷，如果你的主机服务商把file_get_contents和curl都关闭了，上面的函数就会出现错误。
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