mysqli_query（）期望参数1为mysqli null，任何人都可以修复它？

Question

<?php


$results = mysqli_query($connecDB,"SELECT COUNT(*) FROM paginate WHERE IDmen='$name11'");
$get_total_rows = mysqli_fetch_array($results); //total records

//break total records into pages
$total_pages = ceil($get_total_rows[0]/$item_per_page); 

?>

我收到此错误：

  

mysqli_query（）要求参数1为mysqli，在第4行的/home//public_html/load-more-men.php中给出null   mysqli_fetch_array（）要求参数1为mysqli_result，在第5行的/home//public_html/load-more-men.php中给出null   在第8行的/home//public_html/load-more-men.php中除以零

Answer 1

<?php

$connecDB = mysqli_connect("localhost","my_user","my_password","my_db");

$results = mysqli_query($connecDB,"SELECT COUNT(*) FROM paginate WHERE IDmen='$name11'");
$get_total_rows = mysqli_fetch_array($results); //total records

//break total records into pages
$total_pages = ceil($get_total_rows[0]/$item_per_page); 

?>