When i try to apply the below code from here it gives me results in ascending order. Output: On swapping $a and $b it gives the results in descending order except one value Output: i want to have the results in the below order: How do i achieve the same.? Answer My first guess is that usort expects an integer
Tag: php
How to extract images from a PDF in their original format
I’m using pdfimages -j bar.pdf /tmp/image to extract images from a PDF. My objective is to get them in their raw state as they were added. So If it was a .tif I’d like to get a .tif, if it’s a jpg I’d like to get a .jpg. I keep getting .ppm for everything I extract. Is it possible to
Codeigniter: SMTP mail not working
I’m trying to set up a contact form, and I’m struggling to get it working with the SMTP configuration in CI. However I’ve successfully tried with the basic ‘mail’ config. To cut it short, I’m doing …
How to call array_map() without using a closure
I have something like this: What I want to do is to use strlen($string) directly in array_map, but when I try it it won’t work.. Why is the reason? Something like this: Answer Your syntax is a little off:
Select from multiple tables with laravel fluent query builder
I’m re-writing some PHP/MySQL to work with Laravel. One thing I would like to do is make the DB queries more succinct with the Fluent Query Builder but I’m a bit lost: SELECT p.post_text, p….
Check if specific input file is empty
In my form I have 3 input fields for file upload: How can I check if cover_image is empty – no file is put for upload? Answer You can check by using the size field on the $_FILES array like so: (I also check error here because it may be 0 if something went wrong. I wouldn’t use name for
Calling console command within command and get the output in Symfony2
I have a few console command in Symfony2 and I need to execute one command from another command with some parameters. After successfull execution of the second command I need to get the result (as an array for example), not the display output. How can I do that? Answer Here you can have a basic command inside…
How can i secure this API in an APK file
I am currently developing an api for a website i run. The api will be used in a number of places, and one of those places is an Android app. It’s purpose is to allow users to login, and and download files. I have the api build, and it will be using HTTPS so all of the data is fine
Why preg_match() returns first match at index 1 (not 0) of returned array?
Im working on small website scraper with cURL. I decided to use preg_match to find header and article content. This is my code: I was experimenting with it and I found, that if there is one match – it returns it in array at index 1, not 0. Edited question: Why is this 1, not 0? Im doing something wrong?
php header location vs php_redirect
What’s the difference between the function “HTTP_redirect” and “header location” in PHP ? When must I use the function “HTTP_redirect” ? When must I use the function “header location” ? Look that: https://php.net/manual/en/function.http-redirect.php –…