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PHP 7.0 getting closer to release: PHP 7 Coolest Feature

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PHP 7.0 getting closer to release: PHP 7 Coolest Feature </h2>
The PHP development team recently announced the availability of PHP 
7.0.0 RC 2 – the seventh pre-release of the new PHP 7 major series. The 
final version is expected in October 2015. 
 
 
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Also Check: <a href="http://webredesignidea.blogspot.com/2015/09/5-advanced-php-tips-trick.html" target="_blank">5+ Advanced PHP Tips To Improve Your Programming</a> 
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PHP 7.0 provides new language features, and promises users twice the 
performance of PHP 5 by basing it on the PHPNG project (PHP Next-Gen). “The performance gains realised from PHP 7 vary between 25% and 70% 
on real-world apps, and all of that just from upgrading PHP, without 
having to change a single line of code,” said PHP developers Zend. 
 
PHP 7 will also allow developers to declare what kind of return type a
 function is expected to have – similar to argument Type Hints. PHP 7 also comes with new version of the Zend Engine, with features 
such as consistent 64-bit support, removal of old and unsupported SAPIs 
and extensions, and a combined comparison Operator (<=>).               
 
Let’s learn more about these PHP 7 features: 
 1. The problem of Return Types would come to an end With the release of PHP 7, you’ll now be able to indicate appropriate return types on functions in the form displayed below: 
 
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function foo(): array { return []; }</blockquote>
 
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2. The all-new Combined Comparison Operator 
 
 
Also known as the spaceship operator, the Combined Comparison 
Operator <=> serves as a brilliant addition to PHP. It works just 
like strcmp() or the version_compare() functions returning -1 in case 
the left operand is smaller than the right one, 1 in case the left is 
greater than the right one and 0 in case both are equal. One of the 
greatest advantages of Combined Comparison operator is that it can be 
conveniently used any two operands(floats, integers, arrays etc.) and 
not just the strings. Have a look at how the Combined Comparison 
Operator is used in sorting callbacks:  
 
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// Pre Spacefaring^W PHP 7 function order_func($x, $y) { return ($x < $y) ? -1 : (($x > $y) ? 1 : 0); } // Post PHP 7 function order_func($x, $y) { return $x <=> $y; }</blockquote>
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3. Commendable performance improvements 
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With key changes being introduced as phpng, PHP 7 will have its 
performance raised by great bounds and leaps. A majority of smaller 
hosts would benefit from this increased performance and adopt PHP 7 
without giving a second thought. It is expected that PHP 7 will have its
 performance at par with Facebook HHVM. The only exception being that 
PHP 7 won’t have a JIT(Just In Time) compiler. Additionally, this new 
PHP version would also have substantial memory savings. 
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4. Changes in terms of Extension APIs 
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Although the API used for building PHP extensions is still under the 
refurbishing process, it is subjected to multiple changes. The all new 
extension API introduced with PHP 7 would be compatible with HHVM 
run-time as well. 
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5. Addition of Abstract Syntax Tree(AST) 
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As an attempt to bring in the must-needed userland consistency, the 
PHP web development community has planned to add Abstract Syntax 
Tree(AST) into the PHP version 7. Serving as an intermediate code 
representation tool, AST would allow you to eliminate some of the 
visible inconsistencies in addition to creating room for incredible 
tooling such as the usage of AST for creating absolutely stunning 
opcodes. 
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6. Introduction of Uniform Variable Syntax 
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Uniform Variable Syntax plays a pivotal role in solving multiple 
inconsistencies in the way different expressions are being evaluated. 
For instance, here is how you can call closures which are already 
assigned to properties with the help of. 
 
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$object->closureProperty) (): class foo { static $bar = 'woo'; } class woo { static $bat = 'Features of PHP7'; } woo::$bat = function () { echo "Features of PHP7"; }; $exp = 'foo'; ($exp::$bar::$bat)(); 
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PHP 7.0 getting closer to release: PHP 7 Coolest Feature

PHP 7.0 getting closer to release: PHP 7 Coolest Feature The PHP development team recently announced the availability of PHP 7.0.0 RC ...