Pandas Cheat Sheet
In case you're keen on working with information in Python, you're almost certainly going to be using the pandas library. Be that as it may, in any event, when you've learned pandas — maybe in ou..
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PDO vs. MySQLi: Which Should You Use?
When accessing a database in PHP, we have two choices: MySQLi and PDO. So what should you know before choosing one? The differences, database support, stability, and performance concern..
MySQL - UPDATE query based on SELECT Query
You can actually do this one of two ways:
MySQL update join syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
--..
How can I insert one table data into another table in MySQL?
INSERT INTO action_2_members (campaign_id, mobile, vote, vote_date)
SELECT campaign_id, from_number, received_msg, date_received
FROM `received_txts`
WHERE `campaign_id` = '8'
Regular expressions : Tricks you should know
his week I’ve been using regular expressions quite a lot and I wanted to share with you some very useful tricks I’ve learnt along the year.
I definitely believe that regular expressions..
Check, using jQuery, if an element is 'display:none' or block on click
You can use :visible for visible elements and :hidden to find out hidden elements. This hidden elements have display attribute set to none.
hiddenElements = $('..
Getting number of users online with PHP and Mysqli
Using PHP and MySQL to get if a user is online, the number of users currently online, the highest online ever, the number of users online today, and the Last Seen time of a user.
Introduction
Kn..
PHP 8.0 : What's New and Changed (Features, Improvements and the JI...
PHP 8 has been officially released.
It was released on November 26, 2020. You can download it here. It's a new major version, which means that it will introduce some breaking changes, as well ..
