PHP 7, released at the end of November 2015 is a far more optimized version which helps developers to double the performance of website. Right with the launch of PHP's newest version, another discussion is capturing the attention of the World Wide Web. PHP 7 is an attempt of the communities that support the platform against the increase of HHVM. The aim is to build a platform which works 100 times faster than PHP 5 and PHP6. PHP 7 is a long time attempt of communities that have obtainable stable help all the time. Therefore we can expect fast performance and less number of bugs in this new version of PHP.
Read 10 Best PHP 7 interview questions and answers for freshers. PHP 7 lightweight, faster and advanced version on PHP programming Language. Here you can read new features introduced in PHP 7, about Anonymous classes, Null coalescing operator and more
PHP 7 is the latest upgraded version of PHP programming language. It is used to create a dynamic website. If you are PHP fresher or experienced developer and want to sharpen your PHP skills before appearing in an interview then you must read these interview questions on PHP7.
In this video, we have collected some best and Mostly asked Questions interview Questions on PHP 7. Here you can read about PHP scripting language which you are bound to face in PHP or web related job interviews.
Frequently Asked Questions on PHP 7 interview questions
Below are the Major Differences between PHP5 and PHP7
In PHP5 developers could not define the return type so they were inefficient in handling unwanted return type.But PHP7 got the solution for this. Now PHP developers can define the return type as per the expected return value.
In PHP5 was missing anonymous class but now PHP7 has covered this Anonymous Class. Moreover, with PHP7 you can run multiple activities at a time.
In PHP5 error handling is not as perfect as PHP7. PHP7 prevents the code from executing in unwanted direction whenever error encounters.
The Elvis Operator (which is a modified, shortended version of the ternary operator) allows you to clean up your code vastly by reducing the size of simple if statements. Basically the Elvis Operator is used and useful to cut out the first assignment of the variable to itself if it is indeed set.Elvis operator was only implementing in PHP 5.3, so make sure you have at least that installed on your machine before you try it out.
The at sign (@) is used as error control operator in PHP. When an expression is prepended with the @ sign in PHP code, error messages that might be generated by that expression will be ignored. If the track_errors feature is enabled in tahe code, an error message will be produced by the expression and it will be stored in the variable $php_errormsg. This variable will get overwritten on each error.
In equal circumstances, PHP is a faster programming language than Python. By equal circumstances, means that resources that is hardware configuration and time constraints used for both the programming language are same.