Constructor property is null when called from a method

Question

<?php class user { public $connection; public $host; public $username; public $password; public $database; public $port; public function __constructor() { $this->host = "localhost"; $this->username = "root"; $this->password = "Password"; $this->database = "database"; $this->port = "port"; // Create connection $this->connection = new mysqli($this->host, $this->username, $this->password, $this->database, $this->port); // Check connection if ($this->connection->connect_error) { echo "Failed to connect to MySQL: " . $this->connection->connect_error; } } public function save ( $data ) { $prop = strval($data['prop']); $sql = "INSERT INTO user (prop) VALUES ('" .$prop. "')"; if (!mysqli_query($this->connection, $sql)) { die('Error: ' . mysqli_error($this->connection)); } echo "1 record added"; mysqli_close($this->connection); } } ?>

When running the code above I get the following warnings:

PHP Warning: mysqli_query() expects parameter 1 to be mysqli, null given in 'path' on line 32
PHP Warning: mysqli_error() expects parameter 1 to be mysqli, null given in 'path' on line 34

Any help will be much appreciated.

No you don't, because this code does not actually instantiate any users. Where is your testcase? — Lightness Races in Orbit
– Lightness Races in Orbit, Commented May 17, 2013 at 14:21

chandresh_cool · Accepted Answer · 2013-05-17 14:10:34Z

7

You are using wrong magic function for PHP constructor it should be

__construct

and not

__constructor

Check here for more reference

answered May 17, 2013 at 14:10

chandresh_cool

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1 Comment

Tim Kruger Over a year ago

Your a legend bro, can't believe I missed something so simple.

Lightness Races in Orbit · Accepted Answer · 2013-05-17 14:22:24Z

0

Use:

function __construct() {}

instead of:

function __constructor() {}

Please refer to the PHP class documentation.

edited May 17, 2013 at 14:22

Lightness Races in Orbit

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answered May 17, 2013 at 14:15

shanavascet

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