PHP请求页面

< ?php
$file_contents = file_get_contents('http://www.ccvita.com/');
echo $file_contents;
?>
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。

 

< ?php
$ch = curl_init();
$timeout = 5; 
curl_setopt ($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);

echo $file_contents;
?>
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

< ?php
function vita_get_url_content($url) {
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;
}
?>

  

原文地址:https://www.cnblogs.com/objectboy/p/4962139.html