Scheduled (scheduled) tasks implemented by PHP

Sometimes in order to adjust the interface periodically, the program needs to run automatically. There are two ways to do this from the Internet: 1, Ignore_user_abort () Ignore_user_abort () functions with Set_time_limit (0) and sleep ($interval) can be implemented to automatically run updates. PHP scripts can continue to execute even if the client disconnects (such as turning off the browser). Ignore_user_abort (); Execution time is unlimited, php default execution time is 30 seconds, through Set_time_limit (0) can allow the program to execute indefinitely Set_time_limit (0); Run every 5 minutes $interval =60*5; do{ $url = "Http://www.xxx.con"; $ch = Curl_init (); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_returntransfer, 1); curl_setopt ($ch, Curlopt_timeout, 2); $result = curl_exec ($ch); Curl_close ($ch); Wait 5 minutes Sleep ($interval); }while (TRUE); Copy Code

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