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Bytes expression in database

Thread began 9/15/2012 6:28 am by rikaG_510 | Last modified 9/19/2012 5:06 am by rikaG_510 | 474 views | 4 replies |


Bytes expression in database


At the moment, my insert.php page sends image size to a database.
In a database, each size is shown as (for example) ; "177600", which is 178kb.

Is there any way to upload the image size, not as 17760, but as 178?

So far all the images I have are around 200kb, but I might have images in mb in the future for downloading.
So would you also tell me how to show all sizes in mb as well?

Thank you for your help in advance.


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Jason ByrnesWebAssist

the file size is returned in bytes.

to show it in kb or MB, you would need to do the math to perform the conversion

177600 bytes is not 178 kb.

there are 1024 bytes to a kb.

177600 bytes is 173.4375 KB

177600 / 1024 = 173.4375

1 Megabyte = 1048576 bytes, so to convert to mega bytes, you would use:

177600 / 1048576 = 0.169372558594

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Thank you Jason for a detailed explanation.
I'm not a math person, so it helps.

The reason why I said 177600 = 178 kb is because that is how my laptop is showing when I check the file info for this particular image, though it shows 177600 in the database after inserted from my insert.php.

Now you showed me the calculation, I need to ask you how to add this calculation to the process of inserting images to database (this is what I really wanted to know to start with). I will have lots of images to insert, so possibly I want some coding to take care of this.

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Jason ByrnesWebAssist

dont change the value being stored in the database.

use the math to change how it is displayed on the page.

for example, when you add the image size binding to your page, the code will look similar to:

<?php echo $row_recordsetName['ColumnName'?>

edit that to:

<?php echo($row_recordsetName['ColumnName'] / 1024); ?>

to convert the displayed size to kb.

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I rounded number with round() function.

So it was:
<?php echo $row_race2012['FileSize'] / 1024; ?> kb
---> 173.4375 kb

Now it is:
<?php echo round($row_race2012['FileSize'] / 1024); ?> kb
---> 173 kb

Thank you for your help (as always)!

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