imgrooot

Wow that's a wonderful example. I just have one question. Why use (10,2) instead of say (12,2)? Wouldn't it be safer to use a higher threshold if you're expecting bigger to store bigger numbers?

Say I have two functions that convert from Dollar to Cents and Cents to Dollar. function convertToDollar($value) { $amount = $value / 100; return $amount; } function convertToCents($value) { $amount = $value * 100; return $amount; } Currently I convert all the Dollar amounts to cents and store the cents in the mysql database column. When I showcase those amounts on a page, I simply convert the Cents back to Dollar. Am I doing this correctly or is there a better way to store product pricing in mysql table?

Thanks for backing me up. The 100k emails per day is an extreme example I gave. I just want to make sure that a platform I build is able to accommodate that kind of numbers if ever need be and that I'm using the right service to accomplish it. This is merely sending email notifications to registered users, nothing else.

Could you please give me an example of a good service that provides the API? I've used https://www.sender.net to send bulk emails before. But this is using an email list. And it doesn't seem like they have an API.

Say I am using a normal web hosting company like Namecheap. I have a cron job set to send emails to 100,000 users each day, what would be the best way to deliver those emails the fastest? I know there are other platforms that allows you to send mass emails. But those you have to manually input the email list. I want it automated running from the cron job.

So based on what you said, here's the full query. $find_likes = $db->prepare("SELECT COUNT(*) as likes FROM products p JOIN product_likes pl USING (product_id) WHERE p.user_id = :user_id"); $find_likes->bindParam(':user_id', $my_user_id); $find_likes->execute(); $get_likes = $find_likes->fetchColumn(); echo $get_likes; Seems to work fine now. Thanks.

It's late and I'm not thinking straight. I'm posting this question. Hopefully I get a reply in the morning. I have two tables. TABLE 1 - PRODUCTS TABLE 2 - LIKES I am a User who has posted these products. I want to find out ALL the Likes I have received for all my products. Here is my code. $find_products = $db->prepare("SELECT product_id FROM products WHERE user_id = :user_id"); $find_products->bindParam(':user_id', $my_user_id); $find_products->execute(); $result_products = $find_products->fetchAll(PDO::FETCH_ASSOC); if(count($result_products) > 0) { foreach($result_products as $row) { $product_id = $row['product_id']; $find_likes = $db->prepare("SELECT like_id FROM product_likes WHERE product_id = :product_id"); $find_likes->bindParam(':product_id', $product_id); $find_likes->execute(); $result_likes = $find_likes->fetchAll(PDO::FETCH_ASSOC); if(count($result_likes) > 0) { $get_likes = 0; foreach($result_likes as $row) { $get_likes++; } } } } The issue with the above code is that It only shows the Likes if I echo inside the foreach loop. And it'll show combined Likes from each of my products. But I want to actually combine ALL the Likes from ALL the products and be able show them as a single number, outside of the foreach loop. How do I do that?

Tried your way and it didn't work. Tried it this way and it works. $diff->format("%a days");

So this is a simple code that finds out the difference between two dates and displays it in number of days. $date1=date_create("2013-03-15"); $date2=date_create("2013-12-12"); $diff=date_diff($date1,$date2); echo $diff->format("%R%a days"); // RESULT +272 days My first question. Is it possible to remove the + sign in the result above? Second question. Is it possible to show "months" if it's greater than 30 days? And years if the days are greater than 365? How would I do this?

Which I came up with in my 2nd reply. It works.

Not sure what you mean. But here is another version of the code. This seems to work fine. $contest_id = 5; $category_id = 8; $find_entries = $db->prepare("SELECT entry_id, user_id, votes FROM contest_entries WHERE contest_id = :contest_id AND category_id = :category_id AND e_status = :e_status AND votes > :votes ORDER BY votes DESC LIMIT 1"); $find_entries->bindParam(':contest_id', $contest_id); $find_entries->bindParam(':category_id', $category_id); $find_entries->bindValue(':e_status', 0); $find_entries->bindValue(':votes', 0); $find_entries->execute(); $result_entries = $find_entries->fetchAll(PDO::FETCH_ASSOC); if(count($result_entries) > 0) { foreach($result_entries as $row) { $entry_id = $row['entry_id']; $user_id = $row['user_id']; $votes = $row['votes']; } echo $entry_id; } else { echo 'nothing'; }

The issue I'm having is that this query won't find a max value record if it has less than 5 votes. It'll only show the results of an entry has 5 or greater votes. Why is that? $contest_id = 5; $category_id = 8; $find_entries = $db->prepare("SELECT entry_id, user_id, votes FROM contest_entries WHERE contest_id = :contest_id AND category_id = :category_id AND e_status = :e_status AND votes = (SELECT MAX(votes) FROM contest_entries) LIMIT 1"); $find_entries->bindParam(':contest_id', $contest_id); $find_entries->bindParam(':category_id', $category_id); $find_entries->bindValue(':e_status', 0); $find_entries->execute(); $result_entries = $find_entries->fetchAll(PDO::FETCH_ASSOC); if(count($result_entries) > 0) { foreach($result_entries as $row) { $entry_id = $row['entry_id']; $user_id = $row['user_id']; $votes = $row['votes']; } echo $entry_id; } else { echo 'nothing'; }

Ah yes this is a better solution. I've tested it and it works. Thanks.

Well...that was simple and a quick fix. Works now. Thank you.

I have a simply query where I want show how many unique contests are there. So if I have 100 entries in a single contest, then each entry row will have the same contest id in this example. So even though there are 100 entries, they all belong to the same contest id. That means the echo of $total_contests should be 1. But instead I am getting the same count as the entry rows, which is 100. What am I doing wrong? $global_user_id = 1; $count_contests = $db->prepare("SELECT COUNT(*) FROM entries WHERE user_id = :user_id GROUP BY contest_id"); $count_contests->bindParam(':user_id', $global_user_id); $count_contests->execute(); $total_contests = $count_contests->fetchColumn(); echo $total_contests;

That's good to know.

I should also mention that I was trying to make the grayed out disabled text into black color. Which is why it wasn't working for me. Seems like I can color the text any other color except black.

Never mind. I was able to do it using this method. option:disabled { color: red; }

I want to change the color of an option that's disabled. By default it's showing grey. <option disabled="true" class="disabled">Heading One</option> I tried using the "disabled" class to change the color but it doesn't work. But for some reason I can change it's size. Is there a way around this that would work in all browsers?

I just looked those errors up and they have something to do with AdBlocker extension I have installed on the browser. I disabled the AdBlocker extension on that page and reloaded it. Now all the errors are gone. Which is great news.

I am looking for a code where I can get a video URL from Youtube, Vimeo, Facebook and convert it to an embedded video to be shown on my site. I found a script that does that. It works fine. The only errors I get are in the inspect element window in the browser. Errors such as this. Failed to load resource: net::ERR_BLOCKED_BY_CLIENT googleads.g.doubleclick.net/pagead/id:1 Failed to load resource: net::ERR_BLOCKED_BY_CLIENT static.doubleclick.net/instream/ad_status.js:1 This is the function to generate the embedded videos. Do the above errors matter if the videos show up and play fine? function generateVideoEmbedUrl($url){ //This is a general function for generating an embed link of an FB/Vimeo/Youtube Video. $finalUrl = ''; if(strpos($url, 'facebook.com/') !== false) { //it is FB video $finalUrl.='https://www.facebook.com/plugins/video.php?href='.rawurlencode($url).'&show_text=1&width=200'; }else if(strpos($url, 'vimeo.com/') !== false) { //it is Vimeo video $videoId = explode("vimeo.com/",$url)[1]; if(strpos($videoId, '&') !== false){ $videoId = explode("&",$videoId)[0]; } $finalUrl.='https://player.vimeo.com/video/'.$videoId; }else if(strpos($url, 'youtube.com/') !== false) { //it is Youtube video $videoId = explode("v=",$url)[1]; if(strpos($videoId, '&') !== false){ $videoId = explode("&",$videoId)[0]; } $finalUrl.='https://www.youtube.com/embed/'.$videoId; }else if(strpos($url, 'youtu.be/') !== false){ //it is Youtube video $videoId = explode("youtu.be/",$url)[1]; if(strpos($videoId, '&') !== false){ $videoId = explode("&",$videoId)[0]; } $finalUrl.='https://www.youtube.com/embed/'.$videoId; }else{ //Enter valid video URL } return $finalUrl; }

Correct, the multiplication would do the reverse. Like this. function convertToSatoshi($value) { $SAT = $value * 100000000 ; return $SAT; } I was more worried about reversing the decimal part of the 2nd function, but I just realized that it's not needed to convert to Satoshie.

Apparently it's bad to use floats when working with bitcoin. But the API i'm using doesn't really give an option to convert Bitcoin to Satoshie or vice versa. https://www.block.io/api/simple/php So I'm trying to figure out a way to do that function with PHP. Here is the code I found that converts from Satoshie to Bitcoin. My question is, how do I convert from Bitcoin to Satoshie. function convertToBTCFromSatoshi($value) { $BTC = $value / 100000000 ; return $BTC; } function formatBTC($value) { $value = sprintf('%.8f', $value); $value = rtrim($value, '0') . ' BTC'; return $value; } echo formatBTC(convertToBTCFromSatoshi(5000));

Got it. Thanks.

I was wondering if there is a way to automatically get a user's timezone? I want to show certain information if the user's current date is less than the expiry date. It works fine if the user is in a default timezone but what if the user is in a different timezone? How I can I make sure I can get their correct current time? date_default_timezone_set('America/New_York'); $expiry_date = trim($row['expiry_date']); $current_date = date('Y-m-d H:i:s'); if($current_date < $expiry_date) { // show data } else { // don't show }