Pass PHP Variable To JavaScript And Use Alert To Display

Question

I am attempting the below to pass the value in my php variable to JavaScript, but I never have the alert display on screen. What is the proper way to do such?

PHP

<?php  $date = '20170101'; ?>

JavaScript

var datestring = <? php echo $date; ?>;
var year = datestring.substring(0,4);
alert(year);

Fiddle:

https://jsfiddle.net/3ed6opj3/

The desired result that I want to display in the alert is 2017 - the answers below to this point have all been showing <? p

This is giving me <? p as the alert, I want it to show 2017. — BellHopByDayAmetuerCoderByNigh
– BellHopByDayAmetuerCoderByNigh, Commented Jul 18, 2017 at 0:49

Komang Suryadana · Accepted Answer · 2017-07-18 00:47:03Z

1

You have to add " on between the php script

var datestring = "<?php echo $date; ?>";

edited Jul 18, 2017 at 0:47

answered Jul 18, 2017 at 0:43

Komang Suryadana

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3 Comments

BellHopByDayAmetuerCoderByNigh Over a year ago

That produces <? p - my desired result is 2017

Komang Suryadana Over a year ago

try again on the up code i already edited, previously already space between <? and php.

Komang Suryadana Over a year ago

Yeah on jsfiddle cant change to php language, you can running on your local machine for trying

David · Accepted Answer · 2017-07-18 00:48:23Z

0

You need to add quotes

<?php echo "\"".$date."\""; ?>;

answered Jul 18, 2017 at 0:48

David

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