php - preg_replace function set but not working -

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i working, sorry guys...i should not put $_post again inside $stm

the below code received posted value security purpose, plan put preg_replace function..but not working?

<?php  if (isset($_post['cartoutput'])) {  $customer_name = preg_replace("/[^a-za-z0-9 ]/", '', $_post['customer_name']);

more code ...which might cause problem? checked php didn't filter

<?php  if (isset($_post['cartoutput'])) {  $customer_name = preg_replace('/[^a-za-z0-9 ]/', '', $_post['customer_name']); $tel_num = $_post['tel_num']; $customer_address = $_post['customer_address']; $error_status = false;  if (empty($_post['customer_name'])){ echo '<a href="cart.php">please fill name</a>'; $error_status = true; }  if (empty($_post['tel_num'])){ echo '</br><a href="cart.php">please fill contact number</a></br>'; $error_status = true; }  if (empty($_post['customer_address'])){ echo'<a href="cart.php">please fill address</a></br>'; $error_status = true; }  if(!$error_status) {  $sql= 'insert orders (customer_name,tel_num,customer_address,product_name, price, quantity, date_added,customer_messages) values(?,?,?,?,?,?,now(),?)';        $stmt = $myconnection->prepare($sql);  $countarray = count($_post["item_name"]); ($i = 0; $i < $countarray; $i++) { $stmt->bind_param('sssssss', $_post['customer_name'],$_post['tel_num'],$_post['customer_address'], $_post['item_name'][$i], $_post['amount'][$i], $_post['quantity'][$i],$_post['customer_messages']); $stmt->execute(); }  ;

that looks fine me! maybe check customer_name has value first?

$text = "h^&%*ello"; $new = preg_replace("/[^a-za-z0-9 ]/", '', $text); echo $new;  output: hello

when testing here http://writecodeonline.com/php/ correct result syntax looks fine! try ensuring there value!


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