Php 如何在mysql中从列/表中选择多行?
我正在使用以下代码:Php 如何在mysql中从列/表中选择多行?,php,mysql,Php,Mysql,我正在使用以下代码: $con = mysql_connect("NOTGIVEN","NOTGIVEN","NOTGIVEN"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("user_live", $con); $result = mysql_query("SELECT * FROM user_new_post ORDER BY user_date_post DESC"
$con = mysql_connect("NOTGIVEN","NOTGIVEN","NOTGIVEN");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("user_live", $con);
$result = mysql_query("SELECT * FROM user_new_post ORDER BY user_date_post DESC");
while($row = mysql_fetch_array($result))
{
print($row['user_full_name']);
}
除了选择表/行
user\u new\u post
之外,我如何才能选择单个值“users”,然后打印/回显它们呢?或者您有另一个表“user”可以使用
SELECT * FROM user
或者可以使用WHERE子句
SELECT * FROM user_new_post WHERE user_full_name like 'a%' ORDER BY user_date_post DESC
要获取所有以“a”开头的用户名,您可以执行如下搜索:
$result = mysql_query("SELECT * FROM user_new_post WHERE user_name= '".$user."'");
或在查询中执行正则表达式以搜索与您的模式匹配的用户名:
$result = mysql_query("SELECT * FROM user_new_post WHERE user_name REGXP '".$pattern."'");
或者使用MySQL提供的密钥:
$result = mysql_query("SELECT * FROM user_new_post WHERE user_name like '".$user."'");