php增强file_get_contents的兼容性

本文主要是介绍php增强file_get_contents的兼容性，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

php增强file_get_contents的兼容性, 优先选择CURL拓展

function rlib_file_get_contents($url, $referer = null, $timeout = 10){static $curl_enabled = -1;if ($curl_enabled == -1){$curl_enabled = (extension_loaded('curl') && function_exists('curl_exec')) ? 1 : 0;}$contents = null;if ($curl_enabled == 1){$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_REFERER, ($referer == null ? $url : $referer));curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]);//curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept-Encoding: gzip, deflate'));//curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));$contents = curl_exec($ch);	if ($contents == FALSE){global $g_lastError;$g_lastError = curl_error($ch);$contents = null;}curl_close($ch);} else {$contents = file_get_contents($url, false, stream_context_create(array('http' => array('timeout' => $timeout,'header' => 'Referer: ' . ($referer == null ? $url : $referer) . '\r\n' .'User-Agent: ' . $_SERVER["HTTP_USER_AGENT"] . '\r\n'))));if ($contents == FALSE){global $g_lastError;$g_lastError = 'file_get_contents出错';$contents = null;} else {//$contents = mb_convert_encoding($contents, 'UTF-8', mb_detect_encoding($contents, 'UTF-8, GBK, GB2312', true));}}return $contents;
}

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