Change Text

var config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    parent: 'phaser-example',
    scene: {
        create: create,
    }
};

var game = new Phaser.Game(config);

function create() 
{
    var title = this.add.text(100, 200, 'Static Text Object', { fontFamily: 'Arial', fontSize: 64, color: '#00ff00' });

    this.input.once('pointerdown', function () {

        //  You can set the text proprety directly like this:
        title.text = 'Hello world';

        //  Or use the setText method if you need method chaining:
        title.setText('Hello world');

    });
}