错误： Warning: fopen() [function.fopen]: Unable to find the wrapper "https" - did you forget to enable it when you configured PHP?
解决方案有3：
1.windows下的PHP，只需要到PHP.ini中把extension=PHP_openssl.dll前面的;删掉，重启服务就可以了。
2.linux下的PHP，就必须安装openssl模块，安装好了以后就可以访问了。
3.如果服务器你不能修改配置的话，那么就使用curl函数来替代file_get_contents函数，当然不是简单的替换啊。还有相应的参数配置才能正常使用curl函数。
对curl函数封装如下：
代码如下:
function http_request($url,$timeout=30,$header=array()){
if (!function_exists('curl_init')) {
throw new Exception('server not install curl');
}
$ch = curl_init();
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_HEADER,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);
if (!emptyempty($header)) {
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
}
$data = curl_exec($ch);
list($header,$data) = explode("\r\n\r\n",$data);
$http_code = curl_getinfo($ch,CURLINFO_HTTP_CODE);
if ($http_code == 301 || $http_code == 302) {
$matches = array();
preg_match('/Location:(.*?)\n/',$header,$matches);
$url = trim(array_pop($matches));
curl_setopt($ch,false);
$data = curl_exec($ch);
} if ($data == false) {
curl_close($ch);
}
@curl_close($ch);
return $data;
}
原文链接：https://www.f2er.com/php/25372.htmlif (!function_exists('curl_init')) {
throw new Exception('server not install curl');
}
$ch = curl_init();
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_HEADER,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);
if (!emptyempty($header)) {
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
}
$data = curl_exec($ch);
list($header,$data) = explode("\r\n\r\n",$data);
$http_code = curl_getinfo($ch,CURLINFO_HTTP_CODE);
if ($http_code == 301 || $http_code == 302) {
$matches = array();
preg_match('/Location:(.*?)\n/',$header,$matches);
$url = trim(array_pop($matches));
curl_setopt($ch,false);
$data = curl_exec($ch);
} if ($data == false) {
curl_close($ch);
}
@curl_close($ch);
return $data;
}
