$width = 10; //width $length = 10; //Length $door = 2; // Door area $square = $width * $length – $door; //Total area to be painted $perMeter = 1; //Where $w is the amount of paint to paint 1m2 $total …
“The Response callback must not be null” when trying to send a PDF file download in Laravel 7
In my Laravel 7 application, I have a route where a PDF is dynamically generated, and I want the browser to treat it as a file download. In writing this, I found a number of docs and questions about Laravel serving a file download using a file saved on the filesystem, but in my case, I don’t want to sto…
What exactly the unset() function is doing here?
This code takes a number like 2017 and returns the NEXT highest (not total highest, like 7021) number, so in this case 2071 I understand every bit of except the if (($key = array_search($currentNumber, $tmpArray, true)) !== false) { unset($tmpArray[$key]); — what exactly is happening here? Please help a…
PHP function, always returns same output
below there’s a code that I use very often on my website (it’s a MyBB forum) and there’s a specific web page where I have written it 10+ times. To make code easier to read I decided to turn it into a function and call it with different arguments each time. Unfortunately it isn’t workin…
select and count devices at a location based on coordinates of both
By using STContains function of SQL geography it was possible to calculate if a set of coordinates is within an area , however this revealed that if last received coordinates were just outside the area than these coordinates do not match any location. What would be an efficient way to display how many and whi…
Group rows of data by a column value and restructure into an associative multi-dimensionsl array
I am trying to change an indexed array of arrays into a new array structure. My data is as follows: I would like to recreate a new array thats groups them into the same year. The best I can come up with is designating the year as the key so any row that has that year gets added to that
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On the WooCommerce cart page I want to hide: “remove item” button “quantity input” field For items that will go in the comment of // HIDE REMOVE BUTTON & QUNATITY OF THESE ITEMS in the code below Can someone walk me through how to do that? Answer A first option is to hide these fie…
Laravel problem with data array from database
I cant figure out how assign variables in controller from array with database datas. this line: dd($user) return this : how can assign variables from array ? Answer You can use extract to extract array keys as PHP variables. Demo: https://3v4l.org/1IRRF
Passing parameters from command line to script
I am writing a program to scrape the following website: https://filmstoon.in/ From it, I want to find several movies (Batman Begins, Iron Man, Expendables 3) and TV series (Game of Thrones) and to scrape the title, the host url and the meta url. I managed to do this, however, it is manually crafted for the sp…
Check if WooCommerce custom order status exist to execute code
I am creating woocommerce plugin and I have a custom order status “wc-shipped”. I want to execute some plugin options for this custom order status only. Here is my code I want if “wc-shipped” status exist then show these plugin options but I am getting below error. How to fix this ? An…