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# Round a number to 2 decimal points in php

Posted on 2014-12-19
Medium Priority
216 Views
I'm stumped on why this isn't working. \$taxes is a whole number for annual taxes, but I need to divide it so it's shown for monthly. The division works fine, but has too many digits rather than just 2 after the decimal point. Like this: 8.658572115012E-48

When I try using 'round' it sets the number to 0 instead of 8.66 as you would expect.

I tested the variable to be sure it's a number and not a string and it tested true to be a number.

``````		\$taxes = \$taxes / 12;
\$taxes = round(\$taxes, 2);
``````

Anyone have an idea why it's not working or have another method to try?
0
Question by:Dzynit
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LVL 19

Expert Comment

ID: 40509747
Have you tried number_fomat

``````\$taxes = \$taxes / 12;
\$taxes = number_format(\$taxes, 2);
``````
0

LVL 14

Author Comment

ID: 40509756
Yeah, it gave 2 decimal points but still set it to 0.
ex: 0.00
0

LVL 35

Expert Comment

ID: 40509807
What are the original numbers?
0

LVL 14

Author Comment

ID: 40509812
The one that results in 8.658572115012E-48 after division is 380.
0

LVL 14

Author Comment

ID: 40509815
Does the E- maybe have something to do with it? Maybe there's a better method for division?
0

LVL 84

Expert Comment

ID: 40509890
8.658572115012E-48 rounded to two decimal places is 0.00
0

LVL 14

Author Comment

ID: 40509895
Yeah, something isn't working right with the division. 380 is \$380 per year. I need to show that as monthly though and using my calculator, monthly would be \$31.67.
0

LVL 84

Expert Comment

ID: 40509912
\$taxes=380;
echo \$taxes,"\n";
\$taxes = \$taxes / 12;
echo \$taxes,"\n";
\$taxes = round(\$taxes, 2);
echo \$taxes,"\n";
prints
380
31.666666666667
31.67
0

LVL 14

Author Comment

ID: 40509944
The only way it works correctly is if I manually set \$taxes to 380, but I can't do that. It has to be assigned per home coming from the database.

I even tried:
``````\$taxes = (double)\$taxes/12;
``````

But it's still the wrong calculation.
0

LVL 35

Expert Comment

ID: 40509980
What happens when you do var_dump(\$taxes)
0

LVL 37

Expert Comment

ID: 40509993
``````\$taxed = (double)\$taxes;
\$monthly =round(  \$taxed / 12.0 );

``````
0

LVL 84

Expert Comment

ID: 40510001
What is the value of \$taxes per home coming from the database, and how are you assigning that value?
0

LVL 14

Author Comment

ID: 40510010
I can't try that because after all the php programming, it displays xml feed. Try to display any php will just show an error.
0

LVL 14

Author Comment

ID: 40510016
The taxes variable tests true for being a number, but all I can find searching on the way it's acting is that it's still being treated like a string.
I got the ok to just omit it from the feed, but it really bugs me as to why it's not working right.
0

LVL 37

Expert Comment

ID: 40510048
Did you try the code I posted above?
0

LVL 84

Expert Comment

ID: 40510049
What is the value of the number, and what string is it being treated like?
0

LVL 14

Author Comment

ID: 40510056
Yes, that works if I assign the number directly to it in the php. But when the number is assigned coming from the database it's not calculating right.
0

LVL 37

Expert Comment

ID: 40510170
can you paste code showing how you read from the database and assign to the variable \$taxes please.
0

LVL 14

Author Comment

ID: 40510238
``````<?php
// Start XML file, create parent node
\$doc = new DOMDocument("1.0");
\$doc->preserveWhiteSpace = false;
\$doc->formatOutput = true;
\$node = \$doc->createElement("Listings");
\$parnode = \$doc->appendChild(\$node);

mysql_connect("localhost", "jandmhomes_jandm", "---------") or die(mysql_error());
mysql_select_db("jandmhomes_jandm") or die(mysql_error());

\$propertyresult = mysql_query("SELECT * FROM wp_posts
WHERE post_status NOT LIKE 'draft' AND 'post_status' NOT LIKE 'trash' AND post_type='property'") or die(mysql_error());

while (\$propertyid = mysql_fetch_array( \$propertyresult )) {
//echo '<pre>'; print_r(\$propertyid); echo '</pre>';
\$result = mysql_query("SELECT * FROM wp_postmeta
WHERE post_id='".\$propertyid['ID']."'") or die(mysql_error());

// ID and creation date
\$id = \$propertyid['ID'];
\$created_at = date("Y-m-d", strtotime(\$propertyid['post_date']));
\$name = \$propertyid['post_title'];
\$description = \$propertyid['post_content'];
\$description = substr(\$description, 0, 65000);
\$description = utf8_encode(htmlspecialchars(\$description, ENT_QUOTES));

while (\$row = mysql_fetch_array( \$result )) {

//echo \$row['meta_key'].' - '.\$row['meta_value'].'<br />';

// ID - declared above

// User
// THIS IS WHERE THE AGENT ID # AND KEEY NEEDS CHANGED PER LOCATION XML FILE  AND ALSO BELOW ABOVE XML PRINTING
if(\$row['meta_key'] == 'wpp_agents') {
if (\$row['meta_value'] == '18') {
\$getuserinfo = mysql_query("SELECT * FROM wp_users
WHERE ID='".\$row['meta_value']."'") or die(mysql_error());
\$userinfo = mysql_fetch_array( \$getuserinfo );
\$first_name = \$userinfo['display_name'];
\$email = \$userinfo['user_email'];
\$getuserphone = mysql_query("SELECT * FROM wp_usermeta WHERE user_id = ".\$row['meta_value']." AND meta_key LIKE 'phone_number'") or die(mysql_error());
\$userphone = mysql_fetch_array( \$getuserphone );
\$phone = \$userphone['meta_value'];
\$phone = str_replace('(', '', \$phone); \$phone = str_replace(') ', '-', \$phone);	\$phone = str_replace(')', '-', \$phone);
\$website = 'http://www.jandmhomes.com';
\$whichlocation = '18';
\$selleracctkey = '143617305';
}
}

// Name - declared above

if(\$row['meta_key'] == 'city') { \$city = \$row['meta_value']; }
if (\$city == '') {
\$city = \$first_name;
}
if(\$row['meta_key'] == 'state_only') { \$state = \$row['meta_value']; }
if (\$state == '') {
if (\$city == "Woodland") {
\$state = "WA";
} else {
\$state = "OR";
}
}
if(\$row['meta_key'] == 'zip_code') { \$postal_code = \$row['meta_value']; }
\$country = 'USA';

// Type
\$type = 'MobileHome';

// Priority
if(\$row['meta_key'] == 'featured' && \$row['meta_value'] == 'true') { \$priority = 'featured'; }

// Sale Type
\$sale_type = 'sale';

// Price
if(\$row['meta_key'] == 'price') { \$price1 = \$row['meta_value']; }
if(\$row['meta_key'] == 'price_as_shown') { \$price2 = \$row['meta_value']; }
if(\$row['meta_key'] == 'blowout_price') { \$price3 = \$row['meta_value']; }
if (\$price3 != '') { \$price = \$price3; }
if (\$price2 != '' && \$price == '') { \$price = \$price2; }
if (\$price1 != '' && \$price == '') { \$price = \$price1; }

// Rental price
if(\$row['meta_key'] == 'space_rent') { \$lotrent = \$row['meta_value']; }

// Description - declared above

// Created at - declared above

// Photos - set below

// Details
if(\$row['meta_key'] == 'property_type') {
if(\$row['meta_value'] == 'new_home') { \$is_new = 'true'; } else { \$is_new = 'false'; }
}
if(\$row['meta_key'] == 'year_built') { \$year = \$row['meta_value']; }
if(\$row['meta_key'] == 'manufacturer') { \$manufacturer = \$row['meta_value']; }
if(\$row['meta_key'] == 'bedrooms') { \$num_beds = \$row['meta_value']; }
if(\$row['meta_key'] == 'bathrooms') { \$num_baths = \$row['meta_value']; }
if(\$row['meta_key'] == 'size') {
\$size = \$row['meta_value'];
\$size = explode('x',strtolower(str_replace(' ', '', \$size)));
\$width = \$size[0];
\$length = \$size[1];
}
if(\$row['meta_key'] == 'square_feet') { \$home_sqft = \$row['meta_value']; }
if(\$row['meta_key'] == 'bathrooms') { \$num_baths = \$row['meta_value']; }

// Add reference # to description
if(\$row['meta_key'] == 'our_reference_') { \$ref = \$row['meta_value']; }
if (\$is_new == 'true') {
\$ref = \$manufacturer;
}

// Set LocationType
if(\$row['meta_key'] == 'new_home_display_model') {
if (\$locationtypeanswer == 'Yes') { \$locationtype = 'DealerLot'; }
}
if(\$row['meta_key'] == 'location') {
if (\$locationtypeanswer == 'A Used Home To Be Moved') { \$locationtype = 'Move'; }
}
if(\$row['meta_key'] == 'on_lot') {
if (\$locationtypeanswer == 'Yes') { \$locationtype = 'Community'; }
}

// Set square feet
if(\$row['meta_key'] == 'square_feet') { \$sqft = \$row['meta_value']; }

// Set home features
if(\$row['meta_key'] == 'garage') { \$garage = \$row['meta_value']; }
if(\$row['meta_key'] == 'car_port') { \$carport = \$row['meta_value']; }
if(\$row['meta_key'] == 'airconditioning') { \$airconditioning = \$row['meta_value']; }
if(\$row['meta_key'] == 'fireplace') { \$fireplace = \$row['meta_value']; }
if(\$row['meta_key'] == 'storageshed') { \$storageshed = \$row['meta_value']; }
if(\$row['meta_key'] == 'deck') { \$deck = \$row['meta_value']; }
if(\$row['meta_key'] == 'corner_pantry') { \$pantry = \$row['meta_value']; }
if(\$row['meta_key'] == 'garden_tub') { \$gardentub = \$row['meta_value']; }
if(\$row['meta_key'] == 'disposal') { \$disposal = \$row['meta_value']; }
if(\$row['meta_key'] == 'refrigerator') { \$refrigerator = \$row['meta_value']; }
if(\$row['meta_key'] == 'microwave') { \$microwave = \$row['meta_value']; }
if(\$row['meta_key'] == 'gas_range') { \$oven = \$row['meta_value']; }
if(\$row['meta_key'] == 'dishwasher') { \$dishwasher = \$row['meta_value']; }
if(\$row['meta_key'] == 'washerdryer') { \$washerdryer = \$row['meta_value']; }

// Set Property Tax
if(\$row['meta_key'] == 'annual_property_tax') { \$taxes = \$row['meta_value']; }
//\$taxes = 380;
\$taxes = (double)\$taxes/12;

// Set search result text
if(\$row['meta_key'] == 'short_description_for_in_site_search') { \$searchtxt = \$row['meta_value']; }
\$searchtxt = substr(\$searchtxt, 0, 80);
\$searchtxt = utf8_encode(htmlspecialchars(\$searchtxt, ENT_QUOTES));

// Set if sale pending
if(\$row['meta_key'] == 'status') { \$salepending = \$row['meta_value']; }
if(\$salepending == 'Pending') { \$salepending = 'Yes'; } else { \$salepending = 'No'; }
}

if (\$whichlocation == '18') {
\$name = \$name.' ('.\$ref.')';

// PUT TOGETHER XML
\$node = \$doc->createElement("Listing");
\$newnode = \$parnode->appendChild(\$node);

\$node_id = \$doc->createElement("SellerID", \$id);
\$node->appendChild(\$node_id);

\$node->appendChild(\$node_price);

\$node_description = \$doc->createElement("Description", \$description);
\$node->appendChild(\$node_description);

\$node_locationtype = \$doc->createElement("LocationType", \$locationtype);
\$node->appendChild(\$node_locationtype);

\$node_detail_manufacturer = \$doc->createElement("Make", \$manufacturer);
\$node->appendChild(\$node_detail_manufacturer);
\$node_detail_year = \$doc->createElement("Year", \$year);
\$node->appendChild(\$node_detail_year);

\$node_detail_width = \$doc->createElement("Width1", \$width);
\$node->appendChild(\$node_detail_width);
\$node_detail_length = \$doc->createElement("Length1", \$length);
\$node->appendChild(\$node_detail_length);
\$node_detail_sqft = \$doc->createElement("SquareFeet", \$sqft);
\$node->appendChild(\$node_detail_sqft);

\$node_detail_num_beds = \$doc->createElement("Bedrooms", \$num_beds);
\$node->appendChild(\$node_detail_num_beds);
\$node_detail_num_baths = \$doc->createElement("Bathrooms", \$num_baths);
\$node->appendChild(\$node_detail_num_baths);

\$node_detail_garage = \$doc->createElement("Garage", \$garage);
\$node->appendChild(\$node_detail_garage);
\$node_detail_carport = \$doc->createElement("Carport", \$carport);
\$node->appendChild(\$node_detail_carport);
\$node_detail_ac = \$doc->createElement("CentralAir", \$airconditioning);
\$node->appendChild(\$node_detail_ac);
\$node_detail_fireplace = \$doc->createElement("Fireplace", \$fireplace);
\$node->appendChild(\$node_detail_fireplace);
\$node_detail_storageshed = \$doc->createElement("StorageShed", \$storageshed);
\$node->appendChild(\$node_detail_storageshed);
\$node_detail_deck = \$doc->createElement("Deck", \$deck);
\$node->appendChild(\$node_detail_deck);
\$node_detail_pantry = \$doc->createElement("Pantry", \$pantry);
\$node->appendChild(\$node_detail_pantry);
\$node_detail_gardentub = \$doc->createElement("GardenTub", \$gardentub);
\$node->appendChild(\$node_detail_gardentub);
\$node_detail_disposal = \$doc->createElement("GarbageDisposal", \$disposal);
\$node->appendChild(\$node_detail_disposal);
\$node_detail_refrigerator = \$doc->createElement("Refrigerator", \$refrigerator);
\$node->appendChild(\$node_detail_refrigerator);
\$node_detail_microwave = \$doc->createElement("Microwave", \$microwave);
\$node->appendChild(\$node_detail_microwave);
\$node_detail_oven = \$doc->createElement("Oven", \$oven);
\$node->appendChild(\$node_detail_oven);
\$node_detail_dishwasher = \$doc->createElement("Dishwasher", \$dishwasher);
\$node->appendChild(\$node_detail_dishwasher);
\$node_detail_washer = \$doc->createElement("ClothesWasher", \$washerdryer);
\$node->appendChild(\$node_detail_washer);
\$node_detail_dryer = \$doc->createElement("ClothesDryer", \$washerdryer);
\$node->appendChild(\$node_detail_dryer);

\$node_lotrent = \$doc->createElement("LotRent", \$lotrent);
\$node->appendChild(\$node_lotrent);

\$node_taxes = \$doc->createElement("Taxes", \$taxes);
\$node->appendChild(\$node_taxes);

\$node_searchtxt = \$doc->createElement("SearchResultsText", \$searchtxt);
\$node->appendChild(\$node_searchtxt);

\$node_sellerwebsite = \$doc->createElement("SellerWebsite", "http://www.jandmhomes.com/");
\$node->appendChild(\$node_sellerwebsite);

\$node_selleracctkey = \$doc->createElement("SellerAccountKey", \$selleracctkey);
\$node->appendChild(\$node_selleracctkey);

\$node_user_first_name = \$doc->createElement("SellerContactName", \$first_name);
\$node->appendChild(\$node_user_first_name);
\$node_user_co_name = \$doc->createElement("SellerCompanyName", "J&amp;M Homes");
\$node->appendChild(\$node_user_co_name);
\$node_user_phone = \$doc->createElement("SellerPhone", \$phone);
\$node->appendChild(\$node_user_phone);
\$node_user_email = \$doc->createElement("SellerEmail", \$email);
\$node->appendChild(\$node_user_email);

\$node_viewtype = \$doc->createElement("ViewType", "Standard");
\$node->appendChild(\$node_viewtype);

\$node_salepending = \$doc->createElement("SalePending", \$salepending);
\$node->appendChild(\$node_salepending);

// Photos
\$getphotos = mysql_query("SELECT * FROM wp_postmeta WHERE post_id = ".\$id." AND meta_key LIKE 'slideshow_images'") or die(mysql_error());
\$photos = mysql_fetch_array( \$getphotos );
\$photoids = unserialize(\$photos['meta_value']);
\$c = 0;
foreach ((array)\$photoids as \$eachphoto) {
\$photoinfo = mysql_query("SELECT * FROM wp_posts WHERE id = '".\$eachphoto."'") or die(mysql_error());
\$photo = mysql_fetch_array( \$photoinfo );
\$photoaltinfo = mysql_query("SELECT * FROM wp_postmeta WHERE post_id = '".\$eachphoto."' AND meta_key LIKE '_wp_attachment_image_alt'") or die(mysql_error());
\$photoalt = mysql_fetch_array( \$photoaltinfo );
if (\$photoalt['meta_value'] == '') { \$photoalt['meta_value'] = \$name; }
\$photourl = \$photo['guid'];
\$phototitle = \$photoalt['meta_value'];
\$node_photourl = \$doc->createElement("PhotoURL", \$photourl);
\$node->appendChild(\$node_photourl);

\$c++;
if (\$c == 20) { break; }
}
}
}

echo \$doc->saveXML();

// NOTES:
// Set character limit on description
// Put ref # on title if Jim and Scott agree

//\$myFile = "jandm.xml";
//\$fh = fopen(\$myFile, 'w') or die("can't open file");
//\$stringData = \$doc->saveXML();
//fwrite(\$fh, \$stringData);
//fclose(\$fh);

?>
``````
0

LVL 14

Author Comment

ID: 40510239
0

LVL 14

Author Comment

ID: 40510243
To moderators, I forgot to x out the user/pw on the db connect lines. I'm unable to edit that comment now - could you do that for me?
0

LVL 58

Expert Comment

ID: 40510350
Without knowing the real number, and it's strange why you would be getting 0.00 amend your code as such
``````		if(\$row['meta_key'] == 'annual_property_tax') { \$taxes = \$row['meta_value']; }
//\$taxes = 380;
\$taxes = format_number(ceil(\$taxes * 100)/100,2);
``````
0

LVL 35

Accepted Solution

gr8gonzo earned 2000 total points
ID: 40510372
There's really only 2 sources of the problem here: Code or Data.

If you set the data manually to 380 and it works, then that means that either the code is 100% correct and the original data in the database is incorrect, OR the original data is being screwed up by code. That is really the only set of conclusions left.

First, I should note that your \$taxes value is CONDITIONALLY initialized and handled:

// Set Property Tax
if(\$row['meta_key'] == 'annual_property_tax') { \$taxes = \$row['meta_value']; }
//\$taxes = 380;
\$taxes = (double)\$taxes/12;

This is just bad coding. Think about this - whenever you're in a loop where \$row["meta_key"] is NOT annual_property_tax, then you are still running the code:

\$taxes = (double)\$taxes/12;
... and so on...

So let's say you have 5 records:

blah blah = something
blue blah = something else
annual_property_tax = 380
blee blah = another thing
blar blah = final thing

When you're looping through, the first 2 records will still execute the \$taxes = (double)\$taxes / 12; line, which is pretty pointless when the value hasn't been initialized yet, and it'll also throw warnings.

Then you hit the annual_property_tax record and it works once. Then it hits the next couple lines and gets divided up by 12, and then by 12 again.

So I would make certain your taxes code is all wrapped in one conditional block with the part that initializes the value. Example:

// Set Property Tax
if(\$row['meta_key'] == 'annual_property_tax') { \$taxes = (double)\$row['meta_value'] / 12; }
0

LVL 14

Author Closing Comment

ID: 40510400
You nailed it - thank you so much and also thank you for the edit on the pw of the code!
This is what made it finally work:
// Set Property Tax
if(\$row['meta_key'] == 'annual_property_tax') { \$taxes = (double)\$row['meta_value'] / 12; }
\$taxes = (round(\$taxes,2));
0

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