PHP 7.2.7 Released

mysqli::next_result

mysqli_next_result

(PHP 5, PHP 7)

mysqli::next_result -- mysqli_next_resultPrepare next result from multi_query

说明

面向对象风格

bool mysqli::next_result ( void )

过程化风格

bool mysqli_next_result ( mysqli $link )

Prepares next result set from a previous call to mysqli_multi_query() which can be retrieved by mysqli_store_result() or mysqli_use_result().

参数

link

仅以过程化样式:由mysqli_connect()mysqli_init() 返回的链接标识。

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

范例

See mysqli_multi_query().

参见

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User Contributed Notes 2 notes

up
5
admin at travian-utils dot com
8 years ago
Stored procedures few rowset example:

some_file.php
<?php
function proc() {
  global
$global;
 
$db_connect_list = array('site');
 
SQLinit($db_connect_list);
  if(isset(
$global['error'])){return;}
 
SQL('CALL `procedure`();');
  while(
$row=mysqli_fetch_assoc($global['result'])){
   
// do some
 
}
 
SQLnext();
  while(
$row=mysqli_fetch_assoc($global['result'])){
   
// do some
 
}
 
SQLnext();
  while(
$row=mysqli_fetch_assoc($global['result'])){
   
// do some
 
}
 
SQLclose($db_connect_list);
}
?>

config.php
<?php
  $global
['sys']['db']['site'] = array('host'=>'localhost', 'user'=>'site', 'pass'=>'');
?>

engine.php
<?php
function SQLinit($array_list){
  global
$global;
  foreach(
$array_list as $set){
    if(!
$global['sys']['db'][$set]['connect'] = mysqli_connect(
       
$global['sys']['db'][$set]['host'],
       
$global['sys']['db'][$set]['user'],
       
$global['sys']['db'][$set]['pass'])){
     
$global['error']['code'] = 500;
     
$global['error']['text'] = 'Database not avaliable';
     
$w=fopen('error.log','a+');
     
fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
     
fwrite($w,'errno: '.mysqli_connect_errno()."\r\n");
     
fwrite($w,'error: '.mysqli_connect_error()."\r\n");
     
fclose($w);
      return;
    }
    if(!isset(
$global['sys']['default_connect']))
     
$global['sys']['default_connect'] = $global['sys']['db'][$set]['connect'];
   
SQL('SET NAMES \'utf8\' COLLATE \'utf8_unicode_ci\';', $global['sys']['db'][$set]['connect']);
   
SQL('SET CHARACTER SET \'utf8\';', $global['sys']['db'][$set]['connect']);
   
SQL('SET character_set_connection = \'utf8\';', $global['sys']['db'][$set]['connect']);
  }
}
function
mTime(){
  list(
$usec, $sec) = explode(" ", microtime());
  return ((float)
$usec+(float)$sec);
}
function
SQL($sql, $connect = -1){
  global
$global;
  if(
$connect === -1)$connect = $global['sys']['default_connect'];
  if(isset(
$global['error']['sql']))return;
  while (
$connect->next_result()) $connect->store_result();
 
$begin=mTime();
 
$global['result']=mysqli_query($connect, $sql);
 
$end=mTime();
 
$global['sys']['time_sql']+=$end-$begin;
 
$error=mysqli_error($connect);
  if(
$error!=''){
   
$global['error']['code'] = 502;
   
$global['error']['text'] = 'SQL error';
   
$global['error']['sql'] = true;
   
$w=fopen('error.log','a+');
   
fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
   
fwrite($w,'errno: '.mysqli_errno($connect)."\r\n");
   
fwrite($w,'error: '.$error."\r\n");
   
fwrite($w,'sql: '.$sql."\r\n");
   
fclose($w);
  }else{
   
$w=fopen('sql.log','a+');
   
fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
   
fwrite($w,'sql: '.$sql."\r\n");
   
fclose($w);
  }
}

function
SQLnext($connect = -1){
  global
$global;
  if(
$connect === -1)$connect = $global['sys']['default_connect'];
  if(isset(
$global['error']['sql']))return;
 
$connect->next_result();
 
$global['result'] = $connect->store_result();
}

function
SQLclose($array_list){
  global
$global;
  foreach(
$array_list as $set){
   
mysqli_close($global['sys']['db'][$set]['connect']);
  }
}
?>
up
0
pawel dot barcik at gmail dot com
10 years ago
this function returns FALSE when you have an error in your syntax in one of your queries, so be carefull with this type of construction when tracking errors:

<?php

//error in the second sub query 
$result = $db->multi_query("select * from news; seleeeeeeect id from news; update news set title='new title' where id= 12 ");

//code inside object class
$this->_db = new Mysqli($host, $user, $password, $database, $port, $socket);
       
do {
   
$result = $this->_db->store_result();
   
$this->_resultMulti[] = $result;
   
$this->_errnoMulti[] = $this->_db->errno;

    if(
is_object($result)) {
       
$result->free_result();
    }
               
} while(
$this->_db->next_result());

?>

in this construction all you have in the $this->_errnoMulti is :

array(1) {
  [0]=>
  int(0)
}

which means that there are no errors if you are not checking how many queries are executed!
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