Ajax之jQuery

<?php
function Philna_some_words_to_show() {
$options = get_option('philna2_options');
$words ='
Hello, Dolly.
Hello world.
//other words.
';
	// Here we split it into lines
	$words = explode("\n", $words);
 
	// And then randomly choose a line
	return ($words[ mt_rand(0, count($words) - 1) ]);
}
function philna_say(){
	$chosen = Philna_some_words_to_show();
	echo '<p id="philna_say" title="'.__('Click to get a new one (Random)','philna2').'">'.$chosen.'</p>';
}
function philna_say_ajax(){
	if(isset($_GET['refresh'])){
	echo Philna_some_words_to_show();
	die();
	}
}
add_action('init', 'philna_say_ajax');
?>

<?php philna_say();?>

var say=$('#philna_say');
say.click(function(){
$.ajax({
url:'?refresh',
type:'GET',
dataType:'html',
beforeSend:function(){
	say.css('color','#999').hide('slow');
	setTimeout(function(){say.html('<span id="sayload"></span>').show('fast');},500);
	},
error:function(request){
	say.html('Whoops! Something went wrong.Sorry');
	},
success:function(data){
setTimeout(function(){say.hide();say.html(data).show('slow');},2000);
say.css('color','#000');
}
})
});