PHP implementation of Multi-threading Method Summary _php Tutorial

Home is well aware that PHP does not support multithreading. But it's really a headache for someone who needs to be like a multithreaded feature. Fortunately, there are several scenarios that can be solved, such as multithreading capabilities. Here is a summary of the three ways to implement multithreading similar methods, the following are three scenarios and code examples.

1. Curl_multi method

When multi-threading is required, you can use Curl_multi to request multiple operations at once, but Curl is the network communication, the efficiency and reliability is relatively poor.

function Main () {$sql = "Select waybill_id,order_id from Waybill where status>40 order by update_time DESC limit         10 "; $data = Yii::app ()->db->createcommand ($sql)->queryall (); Yii Framework format foreach ($data as $k + $v) {if ($k% 2 = = 0) {//even send a URL $send _data [$k]                 [' url '] = ';             $send _data[$k [' body '] = $v [' waybill_id '];                 } else {//odd send another URL $send _data[$k] [' url '] = ' http://www.abc.com ';             $send _data[$k [' Body ']=array ($v [' order_id '] = = Array (' extra ' = 16));         }} $back _data =sendmulitrequest ($send _data);     Var_dump ($back _data);            } function Sendmulitrequest ($send _data) {$params = array ();               $curl = $text = Array ();         $handle = Curl_multi_init (); foreach ($data as $k + $v) {if (Empty ($v [' url ')]) {$v [' url '] = "http://www.xxx.com";//i F URL isEmpty,set defalut URL} $reqBody = Json_encode ($v [' body ']);             $reqStream = Array (' body ' = = $reqBody,);             $encRequest = Base64_encode (Json_encode ($reqStream));                $params [' data '] = $encRequest;                $curl [$k] = Curl_init ();                curl_setopt ($curl [$k], Curlopt_url, $v [' URL ']);             curl_setopt ($curl [$k], Curlopt_post, TRUE);                curl_setopt ($curl [$k], Curlopt_header, 0);             curl_setopt ($curl [$k], Curlopt_postfields, Http_build_query ($params));                curl_setopt ($curl [$k], Curlopt_returntransfer, 1);         Curl_multi_add_handle ($handle, $curl [$k]);         } $active = null;         do {$MRC = Curl_multi_exec ($handle, $active);            } while ($MRC = = Curlm_call_multi_perform);            while ($active && $MRC = = CURLM_OK) {if (Curl_multi_select ($handle)! =-1) {do {         $MRC = Curl_multi_exec ($handle, $active);             } while ($MRC = = Curlm_call_multi_perform); }} foreach ($curl as $k = + $v) {if (Curl_error ($curl [$k]) = = "") {$te             xt[$k] = (string) curl_multi_getcontent ($curl [$k]);             } curl_multi_remove_handle ($handle, $curl [$k]);         Curl_close ($curl [$k]);         } curl_multi_close ($handle);        return $text; } function Main () {$sql = "Select waybill_id,order_id from Waybill where status>40 order by update_time DESC limit       10 "; $data = Yii::app ()->db->createcommand ($sql)->queryall (); Yii Framework format foreach ($data as $k = + $v) {if ($k% 2 = = 0) {//even send a URL $send _data[$k] [' URL               '] = '';           $send _data[$k [' body '] = $v [' waybill_id '];               } else {//odd send another URL $send _data[$k] [' url '] = ' http://www.abc.com '; $send _data[$k [' Body ']=arraY ($v [' order_id '] = = Array (' extra ' = 16));       }} $back _data =sendmulitrequest ($send _data);   Var_dump ($back _data);        } function Sendmulitrequest ($send _data) {$params = array ();         $curl = $text = Array ();       $handle = Curl_multi_init (); foreach ($data as $k + $v) {if (Empty ($v [' url ')]) {$v [' url '] = "http://www.xxx.com";//if ur           L is empty,set defalut URL} $reqBody = Json_encode ($v [' body ']);           $reqStream = Array (' body ' = = $reqBody,);           $encRequest = Base64_encode (Json_encode ($reqStream));            $params [' data '] = $encRequest;            $curl [$k] = Curl_init ();            curl_setopt ($curl [$k], Curlopt_url, $v [' URL ']);           curl_setopt ($curl [$k], Curlopt_post, TRUE);            curl_setopt ($curl [$k], Curlopt_header, 0);           curl_setopt ($curl [$k], Curlopt_postfields, Http_build_query ($params)); curl_setopt ($curl [$k], Curlopt_returntransfer, 1);       Curl_multi_add_handle ($handle, $curl [$k]);       } $active = null;       do {$MRC = Curl_multi_exec ($handle, $active);        } while ($MRC = = Curlm_call_multi_perform);                   while ($active && $MRC = = CURLM_OK) {if (Curl_multi_select ($handle)! =-1) {do {               $MRC = Curl_multi_exec ($handle, $active);           } while ($MRC = = Curlm_call_multi_perform); }} foreach ($curl as $k = + $v) {if (Curl_error ($curl [$k]) = = "") {$text [$k] = (           String) curl_multi_getcontent ($curl [$k]);           } curl_multi_remove_handle ($handle, $curl [$k]);       Curl_close ($curl [$k]);       } curl_multi_close ($handle);    return $text; }

2, through the stream_socket_client way

function Sendstream () {$english _format_number = Number_format ($number, 4, '. ', ');          echo $english _format_number;          Exit ();          $timeout = 10;          $result = Array ();          $sockets = Array ();             $convenient _read_block = 8192;             $host = "test.local.com";          $sql = "Select waybill_id,order_id from Xm_waybill where status>40 order by update_time desc LIMIT 1";          $data = Yii::app ()->db->createcommand ($sql)->queryall ();          $id = 0; foreach ($data as $k = + $v) {if ($k% 2 = = 0) {$send _data[$k] [' body '] = Noticeorder:              : Getsenddata ($v [' waybill_id ']);              } else {$send _data[$k] [' body '] = array ($v [' order_id '] = = Array (' extra ' + 16));                 } $data = Json_encode ($send _data[$k] [' body ']); $s = stream_socket_client ($host. ":", $errno, $errstr, $timeout, Stream_client_async_connect | STream_client_connect);                  if ($s) {$sockets [$id + +] = $s; $http _message = "Get/php/test.php?data=". $data. "Http/1.0\r\nhost:". $host.                     "\r\n\r\n";              Fwrite ($s, $http _message); } else {echo "Stream". $id.              "Failed to open correctly.";              }} while (count ($sockets)) {$read = $sockets;              Stream_select ($read, $w = null, $e = null, $timeout);  if (count ($read)) {/* Stream_select generally shuffles $read, so we need to compute from which socket (s) we ' re reading.                      */foreach ($read as $r) {$id = Array_search ($r, $sockets);                         $data = Fread ($r, $convenient _read_block); if (strlen ($data) = = 0) {echo "Stream". $id. "Closes at". Date (' H:i:s '). ".
   ";                          Fclose ($R);                      Unset ($sockets [$id]);                      } else {$result [$id] = $data;                   }}} else {/* A time-out means that *all* streams has failed To receive a response.                  */echo "time-out!\n";              Break      }} print_r ($result);        } function Sendstream () {$english _format_number = Number_format ($number, 4, '. ', ');        echo $english _format_number;        Exit ();        $timeout = 10;        $result = Array ();        $sockets = Array ();         $convenient _read_block = 8192;         $host = "test.local.com";        $sql = "Select waybill_id,order_id from Xm_waybill where status>40 order by update_time desc LIMIT 1";        $data = Yii::app ()->db->createcommand ($sql)->queryall ();        $id = 0; foreach ($data as $k = = $v{if ($k% = = 0) {$send _data[$k] [' body '] = noticeorder::getsenddata ($v [' waybill_id ']);            } else {$send _data[$k] [' body '] = array ($v [' order_id '] = = Array (' extra ' + 16));             } $data = Json_encode ($send _data[$k] [' body ']); $s = stream_socket_client ($host. ":", $errno, $errstr, $timeout, Stream_client_async_connect |            Stream_client_connect);                if ($s) {$sockets [$id + +] = $s; $http _message = "Get/php/test.php?data=". $data. "Http/1.0\r\nhost:". $host.                 "\r\n\r\n";            Fwrite ($s, $http _message); } else {echo "Stream". $id.            "Failed to open correctly.";            }} while (count ($sockets)) {$read = $sockets;            Stream_select ($read, $w = null, $e = null, $timeout);            if (count ($read)) {/* Stream_select generally shuffles $read, so we need to      Compute from which socket (s) we ' re reading.                    */foreach ($read as $r) {$id = Array_search ($r, $sockets);                     $data = Fread ($r, $convenient _read_block); if (strlen ($data) = = 0) {echo "Stream". $id. "Closes at". Date (' H:i:s '). ".
";                        Fclose ($R);                    Unset ($sockets [$id]);                    } else {$result [$id] = $data;                  }}} else {/* A time-out means that *all* streams has failed To receive a response.                */echo "time-out!\n";            Break    }} print_r ($result); }

3, through multi-process instead of multithreading

function Daemon ($func _name, $args, $number) {while (true) {$pid =pcntl_fork ();             if ($pid ==-1) {echo "fork process fail";         Exit ();             }elseif ($pid) {//created child process static $num = 0;             $num + +;                  if ($num >= $number) {//when the number of processes reaches a certain number, the child process is recycled.                  Pcntl_wait ($status);             $num--;                     }}else{//For 0 is a child process created, then directly into the working state if (function_exists ($func _name)) {while (true) {                     $ppid =posix_getpid ();                     Var_dump ($PPID);                     Call_user_func_array ($func _name, $args);                 Sleep (2);             }}else{echo "function is not exists";           } exit (); }}} function worker ($args) {//do something} daemon (' Worker ', Array (1), 2);  function Daemon ($func _name, $args, $number) {while (true) {$pid =pcntl_fork ();   if ($pid ==-1) {echo "fork process fail";  Exit ();   }elseif ($pid) {//created child process static $num = 0;   $num + +;    if ($num >= $number) {//when the number of processes reaches a certain number, the child process is recycled.    Pcntl_wait ($status);   $num--;     }}else{//For 0 is a child process created, then directly into the working state if (function_exists ($func _name)) {while (true) {$ppid =posix_getpid ();     Var_dump ($PPID);     Call_user_func_array ($func _name, $args);    Sleep (2);   }}else{echo "function is not exists";  } exit ();   }}}function Worker ($args) {//do Something}daemon (' Worker ', Array (1), 2);

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