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What's new What's new PHP 7.1.0

Nov 18, 2022
php 7.1.0

From the 1st day of December, this year's most recent version of PHP, PHP 7.1.0 is available. Following a major update which improved PHP up from 5.6 straight to 7.0 that significantly increased speed, PHP is now focusing on the features of PHP which will assist all of users write more efficient codes. In this article I'll examine the most significant improvements and new features included in PHP 7.1.0. Additionally, it is possible to review the official changelog.

Nullable Types

One of the most discussed additions will include the nullable types which have been missing. Variables can already give the value of a single type or perhaps the value of null. Also, you can make a programming parameter not return null as default. PHP 7.1 supports null as a return kind for operations.

We will look into the consequences of this. There are several return types which you may recognize from old 7.0.

Function findNumber() is a function that returns an int value of 6. // Returns an int and everything is good. Call the function callNumber() will return'six' int return an int, and is able to cause an error to occur if it's called.

A question mark added before the declaration of the class allows null as a return value.

function call, getNumber() int = null return null is acceptable it's okay, everything's good

The syntax is very similar to that of typehinting parameters. The following example illustrates this.

Function showColor(?string color) will echo $color showColor(  #ff9900' );It works perfectly with a given string. shown color( Null );// is perfect, the null parameter can be utilized

I am awestruck by this function because the more precise the code you write, the better it is for us to work together. Type declarations can also be helpful in identifying any issues ahead of time and is beneficial for all.

php 7.1.0 changes

There is no void and iterable returns

As we're discussing the topic of return types There are two kinds that are completely fresh that are not void. and iterable. Void is an excellent choice to perform operations that don't need return values.

function perform_a_job() : void return; // This is fine, it returns null function perform_a_task() : void // This is also fine, it returns null function perform_another_task() : void return true; // This will return an error since it is not void

This is another way to ensure that our code is self-documenting. The issue of whether or not functions that do not return any results can be utilized is up to debate. However we can employ an established mechanism for indicating the behavior.

Iterable can be a term for a numerical number that can be used to traverse as an array. The benefit of iterable is that it can be used it to determine an object which implements the interface of an iterator.

function fonc01(iterable $data) foreach ($data as $key => $val) //.... fonc01(new SplFixedArray(5)); // Works kist fine, SplFixedArray implements Iterator // See http://php.net/manual/en/class.splfixedarray.php

(Thanks Pascal Martin for the example). Pascal Martin for the example)

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Multi-Catch Exception Handling

For a long time it was the case that an attempt block could contain several exceptions, we had to separate them regardless of whether they employed the similar method of handling. This was solved with PHP 7.1 with the ability to allow the catching of multiple exceptions at once.

try // catch some type of code (FirstException SecondException $e) The First and Second exceptions are dealt with

Keys can be utilized to create lists

When the term list() looks like an operation, it's actually an expression of the language. It's very as array(). This is utilized to make the list of variables at the same way.

Up to now, it was only possible to use numeric arrays that start with the zero. From 7.1.0 beginning with 7.1.0 to 7.1.0, you're allowed to utilize keys using list(), or it's possible to utilize the shorthand: []. Look over the following examples of php.net.

$data =["id" = 1 "name" => 'Tom '],["id" is 2 "name" = "Fred '][/ List() stylelist() stylelist("id" ="id" = "name" =>"name1) = $data[0] [style["id" ="id1" = "name" is the equivalent of $name1"id" = $data[0] // List() stylesforeach ($data as list("id" ="name" = "name" =>"name")) // / logic here using the $name and $id"styleforeach" ($data includes ["id" =>"id" = "name" and name"id" = $id "name") and $name) The logic here is that $id is the id.

A Negative Offset for Strings

PHP 7.1.0 provides a greater selection of options for negative offsets for strings. It is possible to use negative offsets is made possible by employing the [] in conjunction with strings. Take a look at the astonishing results:

$name is "Daniel";echo "My name is the form of "$name[-1 ]".. Nice! ";

Core functions such as strpos are being updated to help make our codes simpler and understandable.

Number Operators, Malformed Numbers and Numbers

It is possible to add 5+ "3" in PHP and will be evaluated to 8 . It's a blessing to some, and a curse for others. The problem becomes more complex when you consider that five plus "three" evaluates to five.

It's extremely inefficient and could result in all sorts of trouble later. PHP 7.1.0 seeks to correct the issue by notifying you there's something amiss with the program, such as the image below. This will continue to function in the same way as PHP converts the input string to a three. A second option will issue an alert or a notice.

Other PHP 7.1.0 Small Added Features

In addition to the numerous bugs that require minor fixes In addition, there are some minor features which should at least be noted

  • SHA3 fixed mode algorithms added
  • This function was added to the iterable() function.
  • Implement Closure::fromCallable
  • Help with HTTP/2 Server Push
  • The MCrypt library has been removed and is scheduled to be eliminated in the next version.

Additional Reading

Be sure to look over these testing of performance for PHP 7.1.0 against PHP 7, and PHP 5. To download the source code of PHP 7.1.0 go to the PHP downloads page.

PHP 7.1, 7.2, and 7.3 to users

php 7.1
PHP 7.1

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