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Editorial Team
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Asked: 2026-06-14T12:39:35+00:00

I am very new to PHP/MySQL and I don’t know the best toolset or

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I am very new to PHP/MySQL and I don’t know the best toolset or how to properly debug.

Here is the code snippet I’m working on. I have two main issues.

1: I’m noticing that escape sequences are not working. All of the \n are ignored in the page display.

2: My code is not entering the while loop, and therefore not displaying the result. When I run the same query on phpMyAdmin, I get one result.

This is the output:

I’m in your db!echoinside postWe have a result table exists name:
outside post

<?php
$mysqli = new mysqli("****", "*****", "******", "******");
if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}
echo "I'm in your db!";
echo "echo";
if( $_POST["submit"] ) {
echo "inside post"; 
    if (!($stmt = $mysqli->prepare("SELECT Cust_name FROM SERVICE_TICKET WHERE Ticket_num=?"))) {
            echo "Prepare failed: (" . $mysqli->errno . ") " . $mysqli->error;
    }
    if (!$stmt->bind_param("i", $_POST['ticket'])) {
        echo "Binding parameters failed: (" . $stmt->errno . ") " . $stmt->error;
    }
    if (!$stmt->execute()) {
        echo "Execute failed: (" . $stmt->errno . ") " . $stmt->error;
    }
    if (!$stmt->bind_result($Cust_name)) {
        echo "Binding output parameters failed: (" . $stmt->errno . ") " . $stmt->error;
    }
    else {
        echo "We have a result";
        echo "<table><br/>";
        echo "table exists";
        printf("<br/>\n\n\n\n\nname:  %s", $Cust_name);
        while ($stmt->fetch()){
            echo "in while loop";
            echo "<tr>\n<td>".$Cust_name."</td>\n</tr>";
        }
        echo "</table>";
    }

}
echo "outside post";
?>

Adding html for the form:

<head>
    <title>Bicycle Store Service Ticket</title>
    <link rel="stylesheet" type="text/css" href="web.css" />
</head>
<body>
    <h1>ACME BICYCLE SHOP</h1>
    <h3 align="center">GET IN GEAR!</h3>

    <form action="search_service.php" method="post">
    <h3>CHECK A SERVICE TICKET</h3>

    <h4>Ticket Number: <input type="text" ticket="ticket">&nbsp;&nbsp;

    <input type="submit" name="submit" value="Search">
    </form>

    <p><a href="index.html">HOME</a></p>
</body>
</html>

Any advice would be super helpful.

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1 Answer

  1. Editorial Team

    Problem #1: escape sequences are working but in HTML line breaks are “insignificant whitespace” and therefore are not displayed. You can add line breaks using the <br> tag.

    Problem #2: it looks like your query returns an empty result set (there is no ticket with the number specified) and so the first invocation of $stmt->fetch() returns false.

    EDIT: The line with the “ticket” input in your HTML should look like:

    <h4>Ticket Number: </h4><input type="text" name="ticket">&nbsp;&nbsp;

    So it’s name="ticket" instead of ticket="ticket", and the <h4> tag should be closed.

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