PHP search code example
Example 1: php sql search form
<?php
$localhost = "localhost";
$username = "root";
$password = "";
$dbname = "samueldb";
$con = new mysqli($localhost, $username, $password, $dbname);
if( $con->connect_error){
die('Error: ' . $con->connect_error);
}
$sql = "SELECT * FROM users";
if( isset($_GET['search']) ){
$name = mysqli_real_escape_string($con, htmlspecialchars($_GET['search']));
$sql = "SELECT * FROM users WHERE firstname ='$name'";
}
$result = $con->query($sql);
?>
<!DOCTYPE html>
<html>
<head>
<title>Basic Search form using mysqli</title>
<link rel="stylesheet" type="text/css"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<label>Search</label>
<form action="" method="GET">
<input type="text" placeholder="Type the name here" name="search">
<input type="submit" value="Search" name="btn" class="btn btn-sm btn-primary">
</form>
<h2>List of students</h2>
<table class="table table-striped table-responsive">
<tr>
<th>ID</th>
<th>First name</th>
<th>Lastname</th>
<th>Address</th>
<th>Contact</th>
</tr>
<?php
while($row = $result->fetch_assoc()){
?>
<tr>
<td><?php echo $row['user_id']; ?></td>
<td><?php echo $row['firstname']; ?></td>
<td><?php echo $row['lastname']; ?></td>
<td><?php echo $row['address']; ?></td>
<td><?php echo $row['contact']; ?></td>
</tr>
<?php
}
?>
</table>
</div>
</body>
</html>
Example 2: array_search in php
<?php
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array);
$key = array_search('red', $array);
?>
Example 3: get element by index array php
$array = array('foo' => 'bar', 33 => 'bin', 'lorem' => 'ipsum');
$array = array_values($array);
echo $array[0];
echo $array[1];
echo $array[2];
Example 4: strpos
strpos ( string $haystack , mixed $needle [, int $offset = 0 ] ) : int
Example 5: array_search in php
<?php
$a = [
'Canceled' => 1,
'Traded / Filled'=> 2,
'(Not used currently)'=> 3,
'Transit'=> 4,
'Rejected'=> 5,
'Pending'=> 6,
];
echo array_search("5",$a);
?>