PHP is a open source so that people can download it and get it for free. People can used PHP for web application development.
PHP-based applications easily and connect them to a database. People mainly used PHP since PHP has a fast rate of loading even if it is over a slow internet connection and speed than other programming languages.
PHP is a programming language that can more easier learn than C language. This is because PHP has less learning curve and can learn it quickly. Programmer can catch on to PHP language quickly for application development.
PHP can helps to connect databases and reduce the trouble and the time to develop web applications or content-based sites together because PHP has a built-in database connection.
Many developers and developing communities have knowledge of the PHP since PHP is a very popular language. So that, people who know the simple language can apply the job in web development.
PHP-based application can run on any operation system so that people can used PHP without worrying what type of platform can be used with it.
PHP is not secure because PHP is open-source. Anyone can easily to look all the text file up.
PHP cannot support many features at a time. If many features used at a time, it can rsult in poor performance such as cannot connect with the web.
People must be learn PHP before they use to insert the PHP in the website successfully.
There are plenty of other languages supported by an outsized community and reference documentation that are easoer to handle for web applications thoug PHP is a powerful programming language.
PHP is fairly easy and well-documented, extremely flexible and combines well with other web development technologies, open-sourde technology, faster that other web development technology.