我很难从我的sql数据库中获取值。我的代码在下面,我试图显示$ balance,但是当我回应它时,它只显示“数组”。
这是我的数据库表的图像:
<?php
session_start();
echo "<!DOCTYPE html>\n<html><head><script src='OSC.js'></script>";
include 'functions.php';
$userstr = ' (Guest)';
if (isset($_SESSION['user']))
{
$user = $_SESSION['user'];
$loggedin = TRUE;
$userstr = " ($user)";
$balancequery = mysql_query("SELECT balance FROM members WHERE user = '$user'");
$balance = mysql_fetch_assoc($balancequery);
}
else $loggedin = FALSE;
echo "<title>$appname$userstr</title><link rel='stylesheet' " .
"href='styles.css' type='text/css' />" .
"</head><body><div class='appname'>$appname$userstr</div>";
if ($loggedin)
{
echo "<br ><ul class='menu'>" .
"<li><a href='members.php?view=$user'>Home</a></li>" .
"<li><a href='members.php'>Members</a></li>" .
"<li><a href='stockdata.php'>Stocks</a></li>" .
"<li><a href='logout.php'>Log out</a></li></ul><br />";
}
else
{
echo ("<br /><ul class='menu'>" .
"<li><a href='index.php'>Home</a></li>" .
"<li><a href='signup.php'>Sign up</a></li>" .
"<li><a href='login.php'>Log in</a></li></ul><br />" .
"<span class='info'>⇒ You must be logged in to " .
"view this page.</span><br /><br />");
}
?>
答案 0 :(得分:2)
mysql_fetch_assoc返回该行字段的关联数组。要回显该行中的字段,必须为其指定正确的索引,该索引将是字段的名称:
echo $balance["balance"];
答案 1 :(得分:1)