Php 5.3 what is new

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Next SlideShares. Download Now Download to read offline and view in fullscreen. Jeremy Coates Follow. Database Systems - Application Development. ORM: Object-relational mapping. Object-Relational Mapping and Dependency Injection. About Orm. Related Books Free with a 30 day trial from Scribd. Related Audiobooks Free with a 30 day trial from Scribd. Elizabeth Howell. Arif Hadianto. Sandeep Kosta , Software Developer at self employed.

Asad Rana. Raphael Almeida Tags php 5. Tamby Narivo Tags php5. Igor Fomichev. I was confused when I saw them together like that "? Hmm very cool. That makes? Not sure if this is a terrible idea some dislike nesting ternary operators , but there it is. MSpreij I would say that is a concise usage of it. Normally, nesting ternary operators is terrible, yes I would forgive up to one nested layer in some cases. As long as there is a comment such as the one you put for inexperienced programmers, then I would find this chaining perfectly acceptable and actually I'm excited to use it, thanks for pointing it out!

MSpreij Actually, to further prove it isn't a terrible idea, PHP 7 introduced the null coalescing operator I forgot about this myself which does a similar thing and has the same general syntax - the difference being isset vs truthy value though. Add a comment.

In the case of: expr1? Gumbo Gumbo k gold badges silver badges bronze badges. Look here: Since PHP 5. Boldewyn Boldewyn The Overflow Blog. Generators can now delegate to another generator, Traversable object or array automatically, without needing to write boilerplate in the outermost generator by using the yield from construct.

The new intdiv function performs an integer division of its operands and returns it. These options have also been expanded to support session. For example, to set session.

Prior to PHP 7, callbacks that needed to be executed per regular expression required the callback function to be polluted with lots of branching.

Now, callbacks can be registered to each regular expression using an associative array, where the key is a regular expression and the value is a callback. Previously, list was not guaranteed to operate correctly with objects implementing ArrayAccess. This has been fixed. Deprecated features in PHP 7.

Submit a Pull Request Report a Bug. New features Scalar type declarations Scalar type declarations come in two flavours: coercive default and strict. Return type declarations PHP 7 adds support for return type declarations.

Null coalescing operator The null coalescing operator?? Spaceship operator The spaceship operator is used for comparing two expressions. Constant arrays using define Array constants can now be defined with define. Anonymous classes Support for anonymous classes has been added via new class.

Unicode codepoint escape syntax This takes a Unicode codepoint in hexadecimal form, and outputs that codepoint in UTF-8 to a double-quoted string or a heredoc. This returns 5. It supports all similar type arguments as a return. Take look at the example of how to specify a return type declaration.

Adding a return type ensures that only an expected value type returns. For the previous two examples if we set the return type float it will work the same.

As the values being returned are already float. So we will be doing an example for int. Without the strict type declaration on, if we specify the return type as int for the previous examples, it will work the same.

With just the difference being, that return will be forged to an integer. Which means it will truncate the float value and only returns the integer. These new implementations of Type Declaration certainly help in making the code easier to read. With PHP 7 you get a versatile type declaration methods which makes your life easier.

You can even see at the start of the function, what is required and what will be returned. The next new feature we will be discussing are the new Error Handling techniques implemented in PHP 7.

Handling fatal errors was a nightmare in previous versions of PHP. If a fatal error occurs it just simply stops the script rather than invoking the error handler. On a production server, this returns a blank white screen to your users, which in the end causes your credibility to drop. But PHP 7 allows an exception to be thrown when an error occurs, rather than stopping the whole script.

They still exist i. One more thing to highlight here is that other types of errors like warnings and notices are unchanged in PHP 7. And exceptions are only thrown by fatal and recoverable errors only. This means both work almost the same way. Under Error, PHP 7 now have some more specific errors.