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PHP generally follows C syntax, with exceptions and enhancements for its main use in web development, which makes heavy use of string manipulation. PHP variables must be prefixed by " $ ". This allows PHP to perform string interpolation in double quoted strings, where backslash is supported as an escape character.
t. e. In computer science, a for-loop or for loop is a control flow statement for specifying iteration. Specifically, a for-loop functions by running a section of code repeatedly until a certain condition has been satisfied. For-loops have two parts: a header and a body. The header defines the iteration and the body is the code that is executed ...
Source code is the form of code that is modified directly by humans, typically in a high-level programming language. Object code can be directly executed by the machine and is generated automatically from the source code, often via an intermediate step, assembly language. While object code will only work on a specific platform, source code can ...
HipHop – developed at Facebook and available as open source, it transforms the PHP scripts into C++ code and then compiles the resulting code, reducing the server load up to 50%. In early 2013, Facebook deprecated it in favour of HHVM due to multiple reasons, including deployment difficulties and lack of support for the whole PHP language ...
PascalABC.NET. PascalABC.NET is a high-level general-purpose programming language supporting multiple paradigms. PascalABC.NET is based on Delphi 's Object Pascal, but also has influences from C#, Python, Kotlin, and Haskell. It is distributed both as a command-line tool for Windows ( .NET framework), Linux and MacOS (Mono), and with an ...
The latter allows the enforcing strong typing onto UNION variables. c.f. union below for example. do loop clause: [ FOR index ] [ FROM first ] [ BY increment ] [ TO last ] [ WHILE condition ] DO statements OD The minimum form of a "loop clause" is thus: DO statements OD. This was considered the "universal" loop, the full syntax is:
Note that the for applies only to a single statement; if one wants to run multiple statements in a loop, they would be separated to another part and called using do: 1.3 Do part 5 for i=1(1)100. 5.1 Type "Hello, Wikipedia!". 5.2 Type "This is JOSS.". As in BASIC, any of the inputs to the for loop could be constants, variables or other expressions.
Basically, object code for the language's interpreter needs to be linked into the executable. Source code fragments for the embedded language can then be passed to an evaluation function as strings. Application control languages can be implemented this way, if the source code is input by the user. Languages with small interpreters are preferred.