Set a javascript variable in cake php and retrieve its value inside normal javascript

Question

How does one set the javascript variable declared in cake php, for example

echo $this->Js->set('jsvalue','test');

I need to get the jsvalue value inside normal javascript

<script>
    // This will need to get value as 'test'
    console.info(jsvalue);
</script>

I am currently using cakephp (1.3). If this feature is not supported in version 1.3, please show me how it is implemented in version 2.0.

jeremyharris · Accepted Answer · 2012-03-22 15:59:38Z

1

It's set on window.app as an object to namespace it. Or, setting $setVariable on your JsHelper properties will change the namespace, to window.<namespace>.

So, it will be set like this:

window.app = {"jsvalue" : "test"}

edited Mar 22, 2012 at 15:59

answered Mar 22, 2012 at 15:52

jeremyharris

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8 Comments

Justin John Over a year ago

So, how it can be taken in normal javascript as an variable. While I tried to take it as window.app.jsvalue gives an error window.app is undefined.

jeremyharris Over a year ago

I think it might be setting to something other than 'app', perhaps your app name? Try window.<app_name> instead.

Justin John Over a year ago

My app folder name is 'app' itself. When i checked in firebug inside script cdata window.app = {"jsvalue":"test"}.but how it can retrevied...

jeremyharris Over a year ago

It's just an object, so window.app.jsvalue = 'test'.

Justin John Over a year ago

While tried with above gives undefined error. console.info(window.app.jsvalue) gives error

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Vinayak Phal · Accepted Answer · 2012-03-30 04:26:16Z

1

If you have written javascript in the view part then directly you can use something like this. I'm not getting what is $this->Js->set('jsvalue','test'); instead of this if you use normal $this->set('jsvalue','test'); and use it as below it should work.

<script>
    // This will need to get value as 'test'
    console.info(<?php echo $jsvalue; ?>);
</script>

Try this, this should do.

edited Mar 30, 2012 at 4:26

answered Mar 23, 2012 at 9:26

Vinayak Phal

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3 Comments

Kevin Vandenborne Over a year ago

It should work, I think this is the only way to do it. Check the source code, check if the PHP value is actually set and check firebug for javascript errors.

Justin John Over a year ago

@KevinVandenborne The firebug error is syntax error and cake error Undefined variable: jsvalue

Vinayak Phal Over a year ago

Sorry I forgot to add $ symbol before jsvalue variable. I'm editing my answer. You can try now, but make sure you've set that value from controller as other variable. Like this you can use any variable in the javascript.

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