Pdo Prepared Statements With Wildcards

pdo prepared statements with wildcards

It can work with bind param too in following way:

$name = "%$name%";
$query = $dbh->prepare("SELECT * FROM `gc_users` WHERE `name` like :name");
$query->bindParam(':name', $name);
$query->execute();

pdo prepared statements with wildcards

It can work with bind param too in following way:

$name = "%$name%";
$query = $dbh->prepare("SELECT * FROM `gc_users` WHERE `name` like :name");
$query->bindParam(':name', $name);
$query->execute();

Implement LIKE in PHP prepared Statements with % wildcards

I want to thank everyone for their help with this. ArtisticPhoenix got me headed in the right direction.

This post hit the mark of what I was looking for to bring it all together:

Adding a wildcard character to a string in PHP

Here's the "slightly" updated code:

    $search = $_POST['search'].'%';

    //echo($search);

    $stmt = $link->prepare("SELECT lname, fname FROM planner WHERE lname LIKE ?");
    $stmt->bind_param('s', $search);
    $stmt->execute();
    $result = $stmt->get_result();

    if ($result->num_rows > 0) {
    echo "<table><tr><th>Last Name</th><th>First Name</th></tr>";
    while($row = $result->fetch_assoc()) {
        echo "<tr><td>".$row["lname"]."</td><td>".$row["fname"]."</td></tr>";
    }
    echo "</table>";
} else {
    echo "0 results";
}

How can I use the '%' wildcard with a LIKE statement in PDO SQL?

Just change bindParam to bindValue. That's what error message telling you.

Mysqli Prepared Statement with % wildcard

You need to bind the complete value, not just a portion of it. This means doing:

$where = "First_Name LIKE ?"

And then binding:

$vals = array('%Mike%');

PHP PDO & SQL Search wildcard bind parameters

Try this Example : Check where is you are wrong.

// Get the keyword from query string
$keyword = $_GET['keyword'];
// Prepare the command
$sth = $dbh->prepare('SELECT * FROM `users` WHERE `firstname` LIKE :keyword');
// Put the percentage sing on the keyword
$keyword = "%".$keyword."%";
// Bind the parameter
$sth->bindParam(':keyword', $keyword, PDO::PARAM_STR);

Using wildcards in prepared statement - MySQLi

You have to pass parameters to bind_param() by reference, which means you have to pass a single variable (not a concatenated string). There's no reason you can't construct such a variable specifically to pass in, though:

$className = '%' . $this->className . '%';
$query->bind_param('s', $className);

Set PHP variable to MySQL wildcard '%'

Using Wildcards in Prepared Statements With PDO

When using a wildcard in MySQL you must use the LIKE operator. It is correct to bind the wildcard with parameters in PDO.

You would prepare your statement like so.

$get_recipes = $con->prepare ("SELECT * FROM recipes WHERE tags LIKE ?");

And then you would bind your parameter using the % character, like so.

 $get_recipes->execute(array('%'));

While that is the correct way to use a wildcard in the way you've proposed, that is not the correct solution to do what you're trying to do.

How to achieve what you're trying to achieve

In your code it looks like you want to select all rows if $_POST['tags'] is not set, and if it is set you want to select all rows that have the tags column set to the value of $_POST['tags']. To do this, you would want to prepare your statement inside the conditional, like so.

if (!isset($_GET['tag'])) {
    $get_recipes = $con->prepare ("SELECT * FROM recipes");
    $get_recipes->execute();
} else {
    $get_recipes = $con->prepare ("SELECT * FROM recipes WHERE tags = ?");
    $get_recipes->execute(array($_GET['tag']));
}

$recipes = $get_recipes->fetchAll();

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