带变量的 PHP 重定向
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Php redirect with variable
提问by st15jap
I am trying to use
我正在尝试使用
header("Location: http://www.mysite.com/gamecode.php?gameid=$pw");
below is my code.
下面是我的代码。
<?php
header("Location: http://www.mysite.com/gamecode.php?gameid=$pw");
$con = mysqli_connect("localhost","placeholder","placeholder","placeholder");
//or die ('unable to connect');
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
//create random table name
$alpha = "abcdefghijklmnopqrstuvwxyz";
$numeric = "0123456789";
$special = ".-+=_,!@$#*%<>[]{}";
$chars = "";
if (isset($_POST['length'])){
// if you want a form like above
if (isset($_POST['alpha']) && $_POST['alpha'] == 'on')
$chars .= $alpha;
if (isset($_POST['alpha_upper']) && $_POST['alpha_upper'] == 'on')
$chars .= $alpha_upper;
if (isset($_POST['numeric']) && $_POST['numeric'] == 'on')
$chars .= $numeric;
if (isset($_POST['special']) && $_POST['special'] == 'on')
$chars .= $special;
$length = $_POST['length'];
}else{
// default [a-zA-Z0-9]{9}
$chars = $alpha . $numeric;
$length = 6;
}
$len = strlen($chars);
$pw = '';
for ($i=0;$i<$length;$i++)
$pw .= substr($chars, rand(0, $len-1), 1);
// the finished password
$pw = str_shuffle($pw);
//using the $pw variable for the table name
$sql="CREATE TABLE `" . $pw . "` (
PID INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY(PID),
Name CHAR(15))";
if (mysqli_query($con,$sql))
{
echo "table was created";
}
else
{
echo "Did not create table";
}
mysqli_close($con);
above is the page i am trying to add the variable to the URL. I do get the the page redirect however it is not adding the header variable to the redirect as it should.
上面是我试图将变量添加到 URL 的页面。我确实得到了页面重定向，但是它没有像它应该的那样将标头变量添加到重定向中。
回答by Sudhir Bastakoti
use double quotes instead of single quote, so change to:
使用双引号代替单引号，因此更改为：
header("Location: http://www.yoursite.com/new_page.php?gameid=$gmid");
or
或者
header('Location: http://www.yoursite.com/new_page.php?gameid='.$gmid);
Double quotes, will evaluate variable values before producing the final output, which single quote does not.
双引号将在生成最终输出之前评估变量值，而单引号则不会。
回答by Sudhir Bastakoti
try this:
尝试这个：
header('Location: http://www.yoursite.com/new_page.php?gameid=' . $gmid);
回答by Gautam3164
Try like
试试像
header('Location: http://www.yoursite.com/new_page.php?gameid='.$gmid);
You need to change the quotes before the variable or You can also try with double quoteslike
您需要更改变量前的引号，或者您也可以尝试使用double quoteslike
header("Location: http://www.yoursite.com/new_page.php?gameid=$gmid");
回答by slash197
Change your quotes to double quotes.
将引号更改为双引号。
回答by itachi
header("Location: http://www.yoursite.com/new_page.php?gameid=$gmid");
header("Location: http://www.yoursite.com/new_page.php?gameid=$gmid");
see the quotes.... "instead of '.
请参阅引号...."而不是'.
回答by Charaf JRA
You have problem with quotes and double quotes: Change your line to this :
您有引号和双引号的问题：将您的行更改为：
header("Location: http://www.yoursite.com/new_page.php?gameid=$gmid");
or this:
或这个：
header("Location: http://www.yoursite.com/new_page.php?gameid=".$gmid);
If you do '$variable', it will be interpreted as string and :
如果这样做'$variable'，它将被解释为字符串和：
echo '$variable'; will show $variableas output .
But if you use "$variable" , echo will output value of this variable.
回声'$variable'; 将显示$variable作为输出。但是如果你使用 "$variable" ，echo 会输出这个变量的值。
