WordPress Ajax implementation

ajax.js

jQuery(document).ready(function() {
    var GreetingAll = jQuery("#GreetingAll").val();

  jQuery("#PleasePushMe").click(function(){ jQuery.ajax({
    type: 'POST',
    url: my_ajax_script.ajaxurl,
    data: {
      action: 'get_my_option',
      GreetingAll: GreetingAll,
    },
    success: function(data, textStatus, XMLHttpRequest){
      jQuery("#test-div1").html('');
      jQuery("#test-div1").append(data);
    },
    error: function(MLHttpRequest, textStatus, errorThrown){
      alert(errorThrown);
    }

    });
    });

});

wp-ajax.php

<?php 
/**
* Initiating Script Handaler
*/

function invoce_script(){
	wp_enqueue_script('jquery');
	wp_enqueue_script( 'action_script', get_template_directory_uri().'/js/ajax-implementation.js', 'jquery');
	wp_localize_script( 'action_script', 'my_ajax_script', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );
}

add_action('template_redirect', 'invoce_script');


function get_my_option(){
	print_r($_POST);

	die();
}

add_action("wp_ajax_nopriv_get_my_option", "get_my_option");
add_action("wp_ajax_get_my_option", "get_my_option");