php file_get_content 怎么获取错误信息?
使用php做跨域代理,使用file_get_content函数发出get请求的时候,对方服务器设置的是,如果验证错误,则会引发http 422,然后还会返回一个json值。
请问,怎么获取这个json值,因为该函数直接返回建立链接失败,没有任何值。
回复内容:
使用php做跨域代理,使用file_get_content函数发出get请求的时候,对方服务器设置的是,如果验证错误,则会引发http 422,然后还会返回一个json值。
请问,怎么获取这个json值,因为该函数直接返回建立链接失败,没有任何值。
参考 (可能需要搭梯子)
<code>set_error_handler( create_function( '$severity, $message, $file, $line', 'throw new ErrorException($message, $severity, $severity, $file, $line);' ) ); try { file_get_contents('www.google.com'); } catch (Exception $e) { echo $e->getMessage(); } restore_error_handler();</code>
另外建议使用curl.
有网址, 可以测试吗?
返回 false ? 试下访问百度啥的能不能访问的通
这应用场景好像还没有碰到过,为嘛要返回422呢,有返回值就应该是200,然后对json判断,试试curl
这个函数不行吧,你用curl系列函数试试
function get_contents() { $content = @file_get_contents("http://segmentfault.com/q/101000000427840111"); var_dump($http_response_header); var_dump($content); } get_contents();
返回的http 状态码可以这么获取
但是如果返回 非 200的话,file_get_contents 会返回 false
可以判断不同的 http status code ,进行不同的逻辑处理

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