How to remove spaces from string in PHP. In this tutorial i’ll explain how to remove spaces from string using regex as well as using in-built function in PHP.
If you know regex then it’s good otherwise you can refer my previous tutorial on Regular expression.
How to connect MySql Database using PHP PDO (PHP Data Objects). What’s the advantage of using PHP data objects.
PHP PDO (PHP data objects) is a database access layer providing a uniform method of access to multiple databases. PHP Data Objects is written to provide a consistent API. Before MySqli and PDO, we used MySql API to connect MySql Database. Let’s see how PDO is better than MySql Api.
In simple words it is a pattern of symbol and characters. Regular expression is used to search,replace or modify the words/strings. It is the most important part of your daily programming usage whether rewriting url using .htaccess, form validation, validating user input etc.
Regular expression is a sequence of characters and each characters has it’s special meaning. Let’s look at some basic characters and it’s meaning.