我真的很難從我的sql數據庫中獲取值。我的代碼在下面,我試圖顯示$ balance,但是當我回顯它時,它只顯示「Array」。我如何從MySQL表中獲取值 - PHP
這裏是我的數據庫表的圖像:
<?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=$user'>Home</a></li>" .
"<li><a href='members.php'>Members</a></li>" .
"<li><a href='stockdata.php'>Stocks</a></li>" .
"<li><a href='logout.php'>Log out</a></li></ul><br />";
}
else
{
echo ("<br /><ul class='menu'>" .
"<li><a href='index.php'>Home</a></li>" .
"<li><a href='signup.php'>Sign up</a></li>" .
"<li><a href='login.php'>Log in</a></li></ul><br />" .
"<span class='info'>⇒ You must be logged in to " .
"view this page.</span><br /><br />");
}
?>
什麼是print_r($餘額)顯示你?順便說一句,mysql_query被折舊。 – RelevantUsername 2013-04-29 21:28:35
這是因爲$餘額是一個數組。嘗試使用print_r($ balance)並查看出來的內容。並搜索php數組來學習如何從數組中回顯一個值。 – jimmy 2013-04-29 21:29:18
@RelevantUsername給了我「Array([balance] => 1000000)」 – MalvEarp 2013-04-29 21:33:15