How to execute js function within php code

[malinga91]

pahala thiyena php code eken session eka check kranawa...

if(isset(session[''])){
// Proceed
}else{
// pahala thiyena js function eka execute kranna oni. alert ekak thamai popup wenne
}

me js eka thiyenne nam onclick event ekakta.

$(".alert").click(function(e) {
           bootbox.confirm("You need to login first./n Do you need to login?", function(result) {
				if (result) {
					  window.location = "../member/login.php"
				} else {
					console.log("User declined dialog");
				}
			});
        });

// Check reserve book button
	// If click check the session is set or not
	if(isset($_POST['reserve'])){
		if(!empty($_SESSION['username'])){
			
			$db->query("INSERT INTO `reserve` (`r_b_id`,`r_m_id`,`r_date`) VALUES ('$book_id','$userId','$date')");
			
		}else{
			echo ' '; // js function
		}	
	}

meka kranne kohomada ????????????

 

[tharindudoo]

if(isset($_POST['reserve'])){
if(!empty($_SESSION['username'])){

$db->query("INSERT INTO `reserve` (`r_b_id`,`r_m_id`,`r_date`) VALUES ('$book_id','$userId','$date')");

}else{ ?>

<script .....>
$(".alert").click(function(e) {
bootbox.confirm("You need to login first./n Do you need to login?", function(result) {
if (result) {
window.location = "../member/login.php"
} else {
console.log("User declined dialog");
}
});
});
</script>

<?php }
} ?>

 

[Lacky Shan]

 

[malinga91]

if(isset($_POST['reserve'])){
if(!empty($_SESSION['username'])){

$db->query("INSERT INTO `reserve` (`r_b_id`,`r_m_id`,`r_date`) VALUES ('$book_id','$userId','$date')");

}else{ ?>

<script .....>
$(".alert").click(function(e) {
bootbox.confirm("You need to login first./n Do you need to login?", function(result) {
if (result) {
window.location = "../member/login.php"
} else {
console.log("User declined dialog");
}
});
});
</script>

<?php }
} ?>

math mehema try kral beluwa eth wada ne bro... nikan alert() ekak damma nam wada kranwa... eth meka ne... http://bootboxjs.com/ me site eken thmai plugin eka download kre....