dongxun2903 2014-03-08 13:03
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如何用sql获取行数?

How can I get the numbers of the lines where userid=8. I have a table with cloumns like ID and userid. So I am trying to put in php array the numbers of the lines that userid=8.

exmple:

  • I have lines 1-10, and userid=8 at lines: 1,4,7,10.
  • $counter[1] = 1
  • $counter[2] = 4
  • $counter[3] = 7
  • $counter[4] = 10

Table image

I tried to use this answer: Get all mysql selected rows into an array but its didnt work.

This is how I am getting the lines where userid=8 , but how can I put them into array?

$midSelect[i]="SELECT * FROM times WHERE userid=8;
$midResult[i]=mysqli_query($con,$midSelect[i]); 

while($row = mysqli_fetch_array($midResult[i])) {
$mid[i]=$row['id'];
}
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2条回答 默认 最新

  • douzhoubing2805 2014-03-08 13:19
    关注

    I think you are just one step away from do it

    $sql ="SELECT id FROM times WHERE userid=8";
    $query =mysqli_query($con,$sql); 
    
    $mid = array();
    while($row = mysqli_fetch_array($query)) {
        $mid[] = $row['id'];
    }
    
    print_r($mid);
    

    Your required values are now stord in your array $mid

    Upon op request i add some code

    Now if you need to echo values you can loop in the array and print while iterating

    foreach($mid as $val)
    {
        echo $val . '<br />';
    }
    //print 
    // 1
    // 4 
    // 5
    // 8
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
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