Top Interview Questions on PHP

Echo can output one or more string but print can only output one string and always returns 1. Echo is faster than print because it does not return any value. In PHP, both echo and print are used to output strings or variables. However, there are some differences between them: Syntax: echo is a language … Read more

PHP print output a string. It is a language construct not a function. So the use of parentheses is not required with the argument list. Unlike echo, it always returns 1. Syntax: int print ( string $arg) In PHP, print is a language construct used to output strings or variables to the browser or standard … Read more

PHP echo output one or more string. It is a language construct not a function. So the use of parentheses is not required. But if you want to pass more than one parameter to echo, the use of parentheses is required. Syntax: void echo ( string $arg1 [, string $… ] ) In PHP, echo … Read more

Scalar type declarations Return type declarations Null coalescing operator (??) Spaceship operator Constant arrays using define() Anonymous classes Closure::call method Group use declaration Generator return expressions Generator delegation Space ship operator PHP 7 introduced several significant features and improvements over its predecessors. Some of the key features of PHP 7 include: Performance Improvements: PHP 7 … Read more

PHP has borrowed its syntax from Perl and C. When asked which programming language PHP resembles, the correct answer would typically be “Perl.” PHP was originally designed as a set of Common Gateway Interface (CGI) binaries written in the C programming language by Danish-Canadian programmer Rasmus Lerdorf in 1994. It was later rewritten in C … Read more