时间:2021-07-01 10:21:17 帮助过:3人阅读
//实例化一个mysqli对象,并打开一个连接
if
(mysqli_connect_errno()){
//检查是否可以正确打开数据库
echo
"<font color=‘red‘>unable to connect!</font>"
;
}
$SQL_SELECT_SYMBOLS
=
"select * from symbols"
;
if
(
$result
=
$mysqli
->query(
$SQL_SELECT_SYMBOLS
)){
if
(
$result
->num_rows>0){
echo
‘<table cellpadding="10" border="1">‘
;
echo
‘<tr><th>id</th><th>country</th><th>animal</th><th>cname</th></tr>‘
;
while
(
$arr
=
$result
->fetch_array()){
echo
"<tr>"
;
echo
"<td>"
.
$arr
[0].
"</td>"
;
echo
"<td>"
.
$arr
[1].
"</td>"
;
echo
"<td>"
.
$arr
[2].
"</td>"
;
echo
"<td>"
.
$arr
[3].
"</td>"
;
echo
"</tr>"
;
}
echo
"</table>"
;
}
else
{
echo
"记录未找到!"
;
}
$result
->close();
//释放记录集所占用的内存
}
else
{
echo
"error in query:$query."
.
$mysqli
->error;
}
$mysqli
->close();
//关闭数据库连接
?>
php示例代码之使用mysqli对象
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