gongxiang.php文件
<?php
function lianjie()
{
mysql_connect("127.0.0.1","ceshi","123");
}?>
ceshi .php文件require_once('../gongxiang.php');
$con = lianjie();
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
为什么会显示Could not connect:
而我这样写 就不会显示连接失败$con = mysql_connect("127.0.0.1","ceshi","123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
<?php
function lianjie()
{
mysql_connect("127.0.0.1","ceshi","123");
}?>
ceshi .php文件require_once('../gongxiang.php');
$con = lianjie();
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
为什么会显示Could not connect:
而我这样写 就不会显示连接失败$con = mysql_connect("127.0.0.1","ceshi","123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
function lianjie()
{
return mysql_connect("127.0.0.1","ceshi","123");
}
也可以直接判断mysql_errno() 返回的是不是 0 ,0代表一切正常,没错误
酱油啊。。积分啊。
lianjie()木有返回值 你的$con永远都是false