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Q:

javascript - CountUp JS resulting in NAN using php variable

Hey everyone,

I'm currently working on a project where I'm using the CountUp.js library in my JavaScript code. I'm trying to make use of a PHP variable within my JavaScript code, but I'm running into an issue where the count is resulting in NaN (Not a Number).

Here's an example of my code:

```javascript
var phpVariable = <?php echo $myVariable; ?>;
var count = new CountUp('my-target', 0, phpVariable);
count.start();
```

I have already verified that the PHP variable `$myVariable` is returning a valid numeric value (e.g., 1000). However, when I try to use it within my JavaScript code, the count just displays NaN instead.

I'm not sure what I'm doing wrong here. Can anyone please help me out with this issue? Thank you in advance!

All Replies

hintz.vernie

Hey,

I had a similar issue in the past while using the CountUp.js library with PHP variables. After some trial and error, I found that the issue was occurring due to the way the PHP variable was being passed to JavaScript.

One thing you can try is to wrap the PHP variable in quotation marks while echoing it, like this:

javascript
var phpVariable = "<?php echo $myVariable; ?>";


By doing this, you ensure that the variable is treated as a string in JavaScript, which can help prevent any unexpected parsing issues.

Another thing you can check is whether the PHP variable's value is being properly formatted. Sometimes, if the value includes special characters or unexpected characters, it can cause the count to result in NaN. You can try adding some debug lines in your PHP code to ensure that the variable's value is what you expect it to be.

If these suggestions don't resolve the issue, it would be helpful to see more of your code or the specific error message you are encountering. That way, the community can provide more targeted assistance. Good luck!

hhintz

Hey,

I've faced a similar issue before while using CountUp.js with PHP variables in my JavaScript code. The NaN error can be frustrating, but don't worry, there's a potential solution you can try.

In my case, I discovered that the issue was related to the data type of the PHP variable. CountUp.js expects numeric values, so if the PHP variable's type is not explicitly cast as a number, it could cause NaN errors.

To ensure that the PHP variable is treated as a number, you can try using the `intval()` or `floatval()` functions in PHP to explicitly cast the variable as an integer or float, respectively. Here's an example:

javascript
var phpVariable = <?php echo floatval($myVariable); ?>;


By using `floatval()`, we ensure that the PHP variable is converted to a float, which is compatible with CountUp.js.

If this doesn't resolve the issue, it's worth checking if there are any other JavaScript errors on the page. Sometimes, unrelated errors can interfere with the correct execution of CountUp.js. You can open the developer console in your browser to see if there are any error messages that could point you in the right direction.

I hope this helps! Let me know if you have any further questions.

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