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Answer Posted / Sanchit Kumar Aluna
To get the size of an image in PHP, you can use the getimagesize() function. Here's an example:
```php
$image_info = getimagesize('path/to/image.jpg');
echo $image_info[0] * $image_info[1]; // total pixels
```
In this code, we use the getimagesize() function to get information about an image file and store it in a variable. The first element of the returned array contains the width of the image, and the second element contains the height. We then calculate and output the total number of pixels.
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