通过单个php mysqli_query函数运行多个查询 [英] running multiple queries through a single php mysqli_query function

问题描述

我有一个脚本，该脚本会根据多个因素生成SQL插入或更新脚本.下面是正在生成的脚本的字符串值:

I have a script that generates a SQL insert or update script depending on several factors. Below is the string value of the script it's generating:

INSERT INTO AAB_EVENT_SHIFTS ( EVENT_ID ,SHIFT ,START_TIME ,END_TIME 
    ,CREATE_USER ,CREATE_DATE ,MODIFY_USER ,MODIFY_DATE ) VALUES ( 6 ,1 
    ,STR_TO_DATE('04/01/2016 10:00 am', '%m/%d/%Y %I:%i %p' ) 
    ,STR_TO_DATE('04/01/2016 11:00 am', '%m/%d/%Y %I:%i %p' ) ,14 ,now() ,14 ,now() 
    ); INSERT INTO AAB_EVENT_SHIFTS ( EVENT_ID ,SHIFT ,START_TIME ,END_TIME ,CREATE_USER ,CREATE_DATE ,MODIFY_USER ,MODIFY_DATE ) VALUES ( 6 ,2 ,STR_TO_DATE('04/01/2016 11:00 am', '%m/%d/%Y %I:%i %p' ) ,STR_TO_DATE('04/01/2016 12:00 pm', '%m/%d/%Y %I:%i %p' ) ,14 ,now() ,14 ,now() ); 
INSERT INTO AAB_EVENT_SHIFTS ( EVENT_ID ,SHIFT ,START_TIME ,END_TIME ,CREATE_USER ,CREATE_DATE ,MODIFY_USER ,MODIFY_DATE ) VALUES ( 6 ,3 
,STR_TO_DATE('04/01/2016 12:00 pm', '%m/%d/%Y %I:%i %p' ) 
,STR_TO_DATE('04/01/2016 1:00 pm', '%m/%d/%Y %I:%i %p' ) ,14 ,now() ,14 ,now() );

如果我在连接到数据库的sql编辑器中运行该脚本，它将运行得很好，并插入所有预期的行.但是，当这样调用该查询时:

If I run that in a sql editor connected to the database it runs perfectly fine and inserts all rows expected. However when calling that query thusly:

$result = mysqli_query($link,$query);

echo mysqli_error($link);

返回此:

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO AAB_EVENT_SHIFTS ( EVENT_ID ,SHIFT ,' at line 24

我将查询的生成方式从创建多个查询的串联字符串更改为创建查询数组并一次运行一个查询-这似乎已解决了该问题.

I changed the way the query generates from creating a concatenated string of multiple queries to creating an array of queries and running them one at a time - this seems to have corrected the issue.

        for($i=1;$i<=$event->total_shifts($event_id);$i++) {
//        echo $event->shift_exists($event_id,$i).'-'.$i.'::<P>';
        if($event->shift_exists($event_id,$i)) {
            $query[$i] =
            'UPDATE AAB_EVENT_SHIFTS '
                    . 'SET START_TIME   = STR_TO_DATE(\''.$event->event_date($event_id).' '.$_POST['start_shift-'.$i].'\', '.'\'%m/%d/%Y %I:%i %p\' )'
                    . ', END_TIME       = STR_TO_DATE(\''.$event->event_date($event_id).' '.$_POST['end_shift-'.$i].'\', '.'\'%m/%d/%Y %I:%i %p\' )'
                    . ',MODIFY_USER     = '. get_session_user_id(session_id())
                    . ',MODIFY_DATE     = now()'
                    . ' WHERE EVENT_ID = '.$event_id.' AND SHIFT = '.$i.'; ';

        } else { $query[$i] =
                '
        INSERT INTO AAB_EVENT_SHIFTS
        (
        EVENT_ID
        ,SHIFT
        ,START_TIME
        ,END_TIME
        ,CREATE_USER
        ,CREATE_DATE
        ,MODIFY_USER
        ,MODIFY_DATE
        )
        VALUES
        (
        '.$event_id.'
        ,'.$i.'
        ,STR_TO_DATE(\''.$event->event_date($event_id).' '.$_POST['start_shift-'.$i].'\', '.'\'%m/%d/%Y %I:%i %p\' )
        ,STR_TO_DATE(\''.$event->event_date($event_id).' '.$_POST['end_shift-'.$i].'\', '.'\'%m/%d/%Y %I:%i %p\' )            
        ,'. get_session_user_id(session_id()) .'
        ,now()
        ,'. get_session_user_id(session_id()) .'
        ,now()
        ); 
        ';

        }
        }

        $i = 1;
        while($query[$i]) {
        echo '<P>'.$query[$i];
            $result = mysqli_query($link, $query[$i]);
            $i++;
        echo '<P>'.mysqli_error($link);
        }

推荐答案

您无法通过单个php mysqli_query函数运行多个查询.
只需让您的脚本生成一个查询的 array ，然后在循环中一个接一个地运行它们即可.

You cannot run multiple queries through a single php mysqli_query function.
Just make your script generate an array of queries and then run them one by one in a loop.

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