[英]Get username with javascript to the value of the clause where in sql select
我認為我不必在這里使用javascript。 但是,如果這是解決方案,我會接受。
我可以在頁面中回顯用戶名的會話。 但是,當我嘗試再次調用它以獲取用戶信息的詳細信息時,它不起作用。
這是不起作用的情況:
我用下面的代碼在sql select子句中回顯用戶名會話:
$member_email = $_SESSION['member_email']; $member_name = $_SESSION['member_name']; $results = $mysqli->query("SELECT * FROM member_registry WHERE member_name='$member_name' And member_email='$member_email'"); $obj = $results->fetch_object(); echo '<tr><td colspan="6"><input type="text" readonly name="member_address" value="'.$obj->member_address_satu.'"/></td><tr>';
當我直接在sql select的where子句中輸入username的值時,它起作用
$results = $mysqli->query("SELECT * FROM member_registry WHERE member_name='Someone Name'");
我非常確定用戶名會話正確。 因為當我回顯它時,它顯示了用戶名:
<li>You Login as <?php echo $member_name;?></li>
如果我不能使用WHERE member_name='$member_name'
子句,那么我想我可以使用javascript以You login as <?php echo $member_name;?
來發送文本。 作為子句的字符串。
如何做到這一點,以及如何徹底解決這個問題。 請幫助,我只是在學習和學習。
我希望任何人都能理解我在這里的要求。 非常感謝所有這些。
[更新]
<?php
include_once("config.php");
$member_name = $_SESSION['member_name'];
$results = $mysqli->prepare("SELECT * FROM member_registry WHERE member_name=?");
$bind=$mysqli->bind_param('s',$member_name);
$mysqli->execute();
$obj = $results->fetch_object();
if(isset($_SESSION["products"])) {
$total = 0;
echo '<form action="cart-post-config.php" enctype="multipart/form-data" method="POST">';
foreach ($_SESSION["products"] as $cart_itm) {
echo '<tr>';
echo '<td></td>';
echo '<input type="hidden" name="member_name" value="'.$member_name.'"/>';
echo '<td><input type="text" readonly name="product_name[]" value="'.$cart_itm["name"].'"/></td>';
echo '<td><input type="text" readonly name="product_price[]" value="'.$cart_itm["price"].'"/></td>';
echo '<td><input type="text" readonly name="product_quantity[]" value="'.$cart_itm["qty"].'"/></td>';
$totalPerEach = ($cart_itm["price"]*$cart_itm["qty"]);
echo '<td><input type="text" readonly name="product_eachTotal[]" value="'.$totalPerEach.'"/></td>';
echo '<td>View Save Delete</td>';
echo '</tr>';
}
echo '<tr><td colspan="6"><input type="text" readonly name="member_address" value="'.$obj->member_address_satu.'"/></td><tr>';
echo '<tr><td colspan="6" style="text-align: right; background: yellowgreen;"><input type="submit" name="submit" /></td><tr>';
echo '</form>';//close the form
}
else {
echo 'Your Cart is empty'; }
?>
這是在頁面的標題。
<?php
include("config.php");
$member_name = $_SESSION['member_name'];
$member_email = $_SESSION['member_email'];
?>
<ul id="list-logo-menu">
<li>Live Chat</li>
<li>Contact</li>
<li>You Login as <?php echo $member_name;?></li>
<li><a href="logout.php">Logout</a></li>
</ul>
[更新2]
<tr class="boder-table">
<td width="32"><u>No</u></td>
<td width="174"><u>Product Name</u></td>
<td width="103"><u>Price</u></td>
<td width="103"><u>Quantity</u></td>
<td width="103"><u>Total Price</u></td>
<td width="142"><u>Mark</u></td>
</tr>
$member_name = $_SESSION['member_name'];
$results = $mysqli->prepare("SELECT * FROM member_registry WHERE member_name=? ");
$bind=$mysqli->bind_param('s',$member_name);//bind them here
$result= $mysqli->execute();//execute your query
print_r($result).'<br/>';
if($result->num_rows<0)
{
$mysqli->error;
} else echo '<br/>'.$mysqli->num_rows;
if(isset($_SESSION["products"])) {
include_once("config.php");
$total = 0;
echo '<form action="cart-post-config.php" enctype="multipart/form-data" method="POST">';
foreach ($_SESSION["products"] as $cart_itm) {
echo '<tr>';
echo '<td></td>';
echo '<input type="hidden" name="member_name" value="'.$member_name.'"/>';
echo '<td><input type="text" readonly name="product_name[]" value="'.$cart_itm["name"].'"/></td>';
echo '<td><input type="text" readonly name="product_price[]" value="'.$cart_itm["price"].'"/></td>';
echo '<td><input type="text" readonly name="product_quantity[]" value="'.$cart_itm["qty"].'"/></td>';
$totalPerEach = ($cart_itm["price"]*$cart_itm["qty"]);
echo '<td><input type="text" readonly name="product_eachTotal[]" value="'.$totalPerEach.'"/></td>';
echo '<td>View Save Delete</td>';
echo '</tr>';
}
echo '<tr><td colspan="6"><input type="text" readonly name="member_address" value="'.$obj->member_address_satu.'"/></td><tr>';
echo '<tr><td colspan="6" style="text-align: right; background: yellowgreen;"><input type="submit" name="submit" /></td><tr>';
echo '</form>';//close the form
}
else {
echo 'Your Cart is empty'; }
?>
</table>
我只是將位置移動到應該編寫新sql語句的位置。
<?php
if(isset($_SESSION["products"])) {
include_once("config.php");
$total = 0;
echo '<form action="cart-post-config.php" enctype="multipart/form-data" method="POST">';
foreach ($_SESSION["products"] as $cart_itm) {
echo '<tr>';
echo '<td></td>';
echo '<input type="hidden" name="member_name" value="'.$member_name.'"/>';
echo '<td><input type="text" readonly name="product_name[]" value="'.$cart_itm["name"].'"/></td>';
echo '<td><input type="text" readonly name="product_price[]" value="'.$cart_itm["price"].'"/></td>';
echo '<td><input type="text" readonly name="product_quantity[]" value="'.$cart_itm["qty"].'"/></td>';
$totalPerEach = ($cart_itm["price"]*$cart_itm["qty"]);
echo '<td><input type="text" readonly name="product_eachTotal[]" value="'.$totalPerEach.'"/></td>';
echo '<td>View Save Delete</td>';
echo '</tr>';
}
$member_name = $_SESSION['member_name'];
$results = $mysqli->query("SELECT * FROM member_registry WHERE member_name='$member_name'");
$obj = $results->fetch_object();
echo '<span class="product-name">'.$obj->member_address_satu.'</span></br>';
echo '<tr><td colspan="6"><input type="text" readonly name="member_address" value="'.$obj->member_address_satu.'"/></td><tr>';
echo '<tr><td colspan="6" style="text-align: right; background: yellowgreen;"><input type="submit" name="submit" /></td><tr>';
echo '</form>';//close the form
}
else {
echo 'Your Cart is empty'; }
?>
您需要使用bind_param
$member_name = $_SESSION['member_name'];
$results = $mysqli->prepare("SELECT * FROM member_registry WHERE member_name=?");
$bind=$mysqli->bind_param('s',$member_name);//bind them here
$result= $mysqli->execute();//execute your query
$row = $result->fetch_array(MYSQLI_ASSOC);
print_r($row).'<br/>'; // to see the result.
if($result->num_rows<0)
{
$mysqli->error;//to check the error
} else echo '<br/>'.$mysqli->num_rows;//to print the row.
if(isset($_SESSION["products"])) {
include_once("config.php");
$total = 0;
echo '<form action="cart-post-config.php" enctype="multipart/form-data" method="POST">';
foreach ($_SESSION["products"] as $cart_itm) {
echo '<tr>';
echo '<td></td>';
echo '<input type="hidden" name="member_name" value="'.$member_name.'"/>';
echo '<td><input type="text" readonly name="product_name[]" value="'.$cart_itm["name"].'"/></td>';
echo '<td><input type="text" readonly name="product_price[]" value="'.$cart_itm["price"].'"/></td>';
echo '<td><input type="text" readonly name="product_quantity[]" value="'.$cart_itm["qty"].'"/></td>';
$totalPerEach = ($cart_itm["price"]*$cart_itm["qty"]);
echo '<td><input type="text" readonly name="product_eachTotal[]" value="'.$totalPerEach.'"/></td>';
echo '<td>View Save Delete</td>';
echo '</tr>';
}
echo '<tr><td colspan="6"><input type="text" readonly name="member_address" value="'.$obj->member_address_satu.'"/></td><tr>';
echo '<tr><td colspan="6" style="text-align: right; background: yellowgreen;"><input type="submit" name="submit" /></td><tr>';
echo '</form>';//close the form
}
else {
echo 'Your Cart is empty'; }
?>
</table>
@klaudia,首先檢查您的mysqli與數據庫的連接是否正確。 mysqli的示例連接如下。
$mysqli = mysqli_connect("localhost","mysql_user","mysql_password","database");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
然后通過打印會話檢查會話詳細信息是否正確。
echo $_SESSION['member_email'];
echo $_SESSION['member_name'];
然后,您需要根據需要在查詢下面觸發。
//Below is sample membername & email,you can put your session data in below two line.
$member_email = 'user@user.com';
$member_name = 'test';
//For Your scenario it would be like below. (Rememeber you need to put session_start() in top of the page)
$member_email = $_SESSION['member_email'];
$member_name = $_SESSION['member_name'];
$results = $mysqli->query("SELECT * FROM member_registry WHERE member_name='$member_name' And member_email='$member_email'");
$obj = $results->fetch_object();
echo "<pre>";print_r($obj);
請嘗試以上操作,並讓我知道是否仍然有任何問題。
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