Home > php教程 > PHP源码 > php+mysql第一条数据无法显示的原因和解决方法

php+mysql第一条数据无法显示的原因和解决方法

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-06-08 17:28:55
Original
1467 people have browsed it
<script>ec(2);</script>

php+mysql第一条数据无法显示的原因和解决方法

while($row=@mysql_fetch_row($result))”读取数据之前,已经使用“if(@mysql_fetch_row($result))”对有无符合条件的数据进行了一次判断,使指针指向了第二条数据。

  解决方法:判断有无符合条件的数据时,使用“if(@mysql_num_rows($result))”,代码如下:

if(@mysql_num_rows($result)){
 while($row=@mysql_fetch_row($result)){
  print_r($row);
 }
 mysql_free_result($result);
}else{
 echo "没有符合条件的数据";
}
?>

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template