Curl_get_contents is more stable than file_get_contents sharing

Curl_get_contents is more stable than file_get_contents sharing_PHP tutorial

WBOY

Release： 2016-07-21 15:22:13

Original

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Share an actually used function:

Copy code The code is as follows:

 
/*Much more stable than file_get_contents! $timeout is the timeout time, the unit is seconds, and the default is 1s. */ 
function curl_get_contents($url,$timeout=1) { 
$curlHandle = curl_init(); 
curl_setopt( $curlHandle , CURLOPT_URL, $url ); 
curl_setopt( $curlHandle , CURLOPT_RETURNTRANSFER , 1 ); 
curl_setopt( $curlHandle , CURLOPT_TIMEOUT, $timeout ); 
$result = curl_exec( $curlHandle ); 
curl_close( $curlHandle ); 
return $result; 
} 
$hx = curl_get_contents('http://www.jb51.net'); 

I believe that friends who have used the file_get_contents function know that when the obtained $url cannot be accessed, it will It causes a long wait for the page, and can even cause the PHP process to occupy 100% of the CPU, so this function was born. Some common sense introduction to curl
The reason for retaining the original file_get_contents function is that when reading local files, it is obviously more appropriate to use the native file_get_contents.
Another optimization of file_get_contnets comes from Zhang Yan. For details, please see: http://www.jb51.net/article/28030.htm
The timeout is also set to solve this problem. If curl is not installed, you must use this method.

Copy code The code is as follows:

 
$ctx = stream_context_create(array( 
'http' => array( 
'timeout' => 1 //Set a timeout in seconds 
) 
) 
); 
file_get_contents("http://www.jb51.net/" , 0, $ctx); 

In addition, according to incomplete testing, using curl to get the page is more stable than using file_get_contents.