Tag: operators

Split strings in array to form three-element subarrays

operators php preg-split text-parsing where-clause

I am practising with the AdventureWorks database for now and I will be receiving strings like the following: SalesOrderNumber=SOH123 and CustomerID=1. The strings may not always contain =, as they may be >, <, >=, <=, !=, <>. Ideally, I would like to split each string into 3 fields – the database column to query, the comparison (e.g. =, >,

How to calculate the age of a person using variables like: year, month, day in PHP

html if-statement operators php variables

I have tried to get the age of a person, using the code below, although I wanted the output to be your exact age, it reads an incorrect age if your birthday was before the current date but a correct age if your birthday is after the current date kindly correct the code Answer You can use this for age

Is it possible to use *= operator together with round() function

operators php rounding

I often need to use fractional modificators for my variables. Like this: Yet I need the oputput to be rounded, so I need to use: Is is no big deal, but every single time I can not use the *= operator, and I need to write round(). Is there a shrotcut for this? Answer As $var *= 1.5; is a

How to display data in PHP from a database where every 4 data that appears then the other data is placed below

html loops operators php

Currently I’m making a PHP application which displays data from a database by script as below: table{ border-collapse:…

Right associativity of PHP’s null coalesce operator

associativity null-coalescing-operator operators php

According to PHP documentation, the null coalescing operator ?? is right-associative, i.e. is equivalent to What is the significance of this? Does it make any difference for developers that it is left-associative or right-associative? To those who are thinking it will call less functions, this is not true because the right operand will not be evaluated if the left operand

AND/OR Operator Precedence in Google Search

operators php

I need to do an advanced Google search, using their SiteSearch API. I’m currently using a string of the following format that is sent via curl to my search engine: $search_url = “http://www.google….

How does PHP compare strings with comparison operators?

compare operators php string type-coercion

I’m comparing strings with comparison operators. I needs some short of explanations for the below two comparisons and their result. if(‘ai’ > ‘i’) { echo ‘Yes’; } else { echo ‘No’; } …

What are the backticks “ called?

bash nomenclature operators perl php

What are the backtick operators (“) called in the context of evaluating their content? Answer If you’re referring to Bash then the backticks are known as “command substitution”. $() provides similar functionality.

Best way to give a variable a default value (simulate Perl ||, ||= )

default-value operators perl php

I love doing this sort of thing in Perl: $foo = $bar || $baz to assign $baz to $foo if $bar is empty or undefined. You also have $foo ||= $bletch which will only assign $bletch to $foo if $foo is not defined or empty. The ternary operator in this situation is tedious and tiresome. Surely there’s a simple, elegant

Stacking Multiple Ternary Operators in PHP

operators php ternary-operator

This is what I wrote : $Myprovince = ( ($province == 6) ? “city-1” : ($province == 7) ? “city-2” : ($province == 8) ? “city-3” : ($province == 30) ? “city-4” : “out of borders” ); But for every …