存储在会话中的数据,但在其他php文件中获取某些对象时为空
在我将数据存储在会话数组中的原始会话上,当我获取它时,所有数据都是完整的,但是当我在另一个会话上调用该会话时,一些数据是空的或未定义的 我不知道该怎么办,请帮忙 编辑:在原始文件中存储在会话中的数据,但在其他php文件中获取某些对象时为空,php,session,Php,Session,在我将数据存储在会话数组中的原始会话上,当我获取它时,所有数据都是完整的,但是当我在另一个会话上调用该会话时,一些数据是空的或未定义的 我不知道该怎么办,请帮忙 编辑:在原始文件中 $query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name from promo
$query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id
dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name
from promo p
inner join discounts_free_products dfp
on p.id=dfp.promo_id
inner join products pd
on dfp.product_id=pd.id
where DATE(p.end_date) >= DATE(NOW())
");
$query->execute();
$count=0;
$queryresult_set=array();
$queryresult_set=$query->fetchAll();
$count=count($queryresult_set);
$_SESSION['COUNT_PROMO']= $count;
$_SESSION["PROMO_PRODUCTS"]=$queryresult_set;
在其他php文件中
foreach($_SESSION["PROMO_PRODUCTS"] as $result) {
$pc_list[] = $result["product_id"];
$d_id=$result['id'];
}
错误:未定义索引:产品id
会话通过session\u start()
函数启动。
会话创建
<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Set session variables
$_SESSION["favcolor"] = "green";
$_SESSION["favanimal"] = "cat";
?>
</body>
</html>
检索另一页上的会话
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Echo session variables that were set on previous page
echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";
echo "Favorite animal is " . $_SESSION["favanimal"] . ".";
?>
</body>
</html>
会话通过session\u start()
函数启动。
会话创建
<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Set session variables
$_SESSION["favcolor"] = "green";
$_SESSION["favanimal"] = "cat";
?>
</body>
</html>
检索另一页上的会话
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Echo session variables that were set on previous page
echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";
echo "Favorite animal is " . $_SESSION["favanimal"] . ".";
?>
</body>
</html>
您可能忘记添加
会话_start()代码>在文件的开头。这是我开始时最常见的问题。但是没有你的代码,这里没有人能帮你
编辑:
你确定你有:
original.php
session_start();
$query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id
dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name
from promo p
inner join discounts_free_products dfp
on p.id=dfp.promo_id
inner join products pd
on dfp.product_id=pd.id
where DATE(p.end_date) >= DATE(NOW())
");
$query->execute();
$count=0;
$queryresult_set=array();
$queryresult_set=$query->fetchAll();
$count=count($queryresult_set);
$_SESSION['COUNT_PROMO']= $count;
$_SESSION["PROMO_PRODUCTS"]=$queryresult_set;
session_start();
foreach($_SESSION["PROMO_PRODUCTS"] as $result) {
$pc_list[] = $result["product_id"];
$d_id=$result['id'];
}
在other.php中
session_start();
$query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id
dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name
from promo p
inner join discounts_free_products dfp
on p.id=dfp.promo_id
inner join products pd
on dfp.product_id=pd.id
where DATE(p.end_date) >= DATE(NOW())
");
$query->execute();
$count=0;
$queryresult_set=array();
$queryresult_set=$query->fetchAll();
$count=count($queryresult_set);
$_SESSION['COUNT_PROMO']= $count;
$_SESSION["PROMO_PRODUCTS"]=$queryresult_set;
session_start();
foreach($_SESSION["PROMO_PRODUCTS"] as $result) {
$pc_list[] = $result["product_id"];
$d_id=$result['id'];
}
编辑
尝试:
也许你有饼干,但却错过了在其他地方填它。这是来自
您可能忘记添加会话_start()代码>在文件的开头。这是我开始时最常见的问题。但是没有你的代码,这里没有人能帮你
编辑:
你确定你有:
original.php
session_start();
$query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id
dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name
from promo p
inner join discounts_free_products dfp
on p.id=dfp.promo_id
inner join products pd
on dfp.product_id=pd.id
where DATE(p.end_date) >= DATE(NOW())
");
$query->execute();
$count=0;
$queryresult_set=array();
$queryresult_set=$query->fetchAll();
$count=count($queryresult_set);
$_SESSION['COUNT_PROMO']= $count;
$_SESSION["PROMO_PRODUCTS"]=$queryresult_set;
session_start();
foreach($_SESSION["PROMO_PRODUCTS"] as $result) {
$pc_list[] = $result["product_id"];
$d_id=$result['id'];
}
在other.php中
session_start();
$query = $dbh->prepare("Select p.start_date,p.end_date,dfp.id,dfp.product_id
dfp.type,dfp.quantity_required,dfp.less,pd.unit,pd.name
from promo p
inner join discounts_free_products dfp
on p.id=dfp.promo_id
inner join products pd
on dfp.product_id=pd.id
where DATE(p.end_date) >= DATE(NOW())
");
$query->execute();
$count=0;
$queryresult_set=array();
$queryresult_set=$query->fetchAll();
$count=count($queryresult_set);
$_SESSION['COUNT_PROMO']= $count;
$_SESSION["PROMO_PRODUCTS"]=$queryresult_set;
session_start();
foreach($_SESSION["PROMO_PRODUCTS"] as $result) {
$pc_list[] = $result["product_id"];
$d_id=$result['id'];
}
编辑
尝试:
也许你有饼干,但却错过了在其他地方填它。这是来自
请共享您的代码?在注释中添加有问题的代码…如果@Abdulla的answear是正确的,请确保标记它。请共享您的代码?在注释中添加有问题的代码…如果@Abdulla的answear是正确的,请确保标记它。