Downloaded 19 times
![$action = isset($_GET[‘action’])
? $_GET[‘action’]
: ‘default’;
< PHP 7.0](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-14-320.jpg)
![$action = isset($_GET[‘action’])
? $_GET[‘action’]
: (isset($_POST[‘action’])
? $_POST[‘action’]
: ($this->getAction()
? $this->getAction()
: $_’default’
)
);](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-15-320.jpg)
![$_GET[‘value’] ??
$_POST[‘value’];](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-17-320.jpg)
![$key = (string) $key;
$keyName =
(null !== ($alias = $this->getAlias($key))) ? $alias : $key;
if (isset($this->params[$keyName])) {
return $this->params[$keyName];
} elseif (isset($this->queryParams[$keyName])) {
return $this->queryParams[$keyName];
} elseif (isset($this->postParams[$keyName])) {
return $this->postParams[$keyName];
}
return $default;](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-18-320.jpg)
![$key = (string) $key;
$keyName = $this->getAlias($key) ?? $key;
return $this->params[$keyName]
?? $this->queryParams[$keyName]
?? $this->postParams[$keyName];
PHP 7](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-19-320.jpg)
![function test(string $val) {
echo $val;
}
test(new class {
public function __toString() {
return "Hey, PHP[tek]!";
}
});
// Outputs: string(14) "Hey, PHP[tek]!"](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-26-320.jpg)
![$$foo[‘bar’]->baz();](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-57-320.jpg)
![$foo->$bar[‘baz’];
{#1
$foo->result;
{
#2
PHP 5.6
{
#1
$result[‘baz’];
{
#2
PHP 7
$foo->$bar[‘baz’];](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-59-320.jpg)
![unserialize($value, [
‘allowed_classes’ => false
]);
unserialize($value, [
‘allowed_classes’ => [
‘BlueModelsUserModel’
]
]);
PHP 7](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-69-320.jpg)
![BREAKING CHANGES
• list() assigns variables in proper order now:
• call_user_method() and
call_user_method_array() removed.
list($a[], $a[], $a[]) = [1, 2, 3];
// PHP 5.6 output: 3, 2, 1
// PHP 7 output: 1, 2, 3](https://image.slidesharecdn.com/jan16-php7-160106220910/85/What-s-new-with-PHP7-73-320.jpg)
Uploaded bySWIFTotter Solutions
What's new with PHP7
The document discusses the new features, updates, and breaking changes introduced in PHP 7, emphasizing the importance of upgrading to leverage improvements like strong typing support, null coalescing, and the spaceship operator. It highlights the low adoption rate of PHP 7 so far and provides upgrade considerations and resources for developers. The author encourages the community to adopt PHP 7 and make the transition collaboratively.
More Related Content
What's new with PHP7
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- 6. WITH MUCH GRATITUDE. •Many, many hours represented: • 189 people • 10,033 commits • All to give us a better programming language.
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- 14. $action = isset($_GET[‘action’]) ?$_GET[‘action’] : ‘default’; < PHP 7.0
- 15. $action = isset($_GET[‘action’]) ?$_GET[‘action’] : (isset($_POST[‘action’]) ? $_POST[‘action’] : ($this->getAction() ? $this->getAction() : $_’default’ ) );
- 16.
- 17.
- 18. $key = (string)$key; $keyName = (null !== ($alias = $this->getAlias($key))) ? $alias : $key; if (isset($this->params[$keyName])) { return $this->params[$keyName]; } elseif (isset($this->queryParams[$keyName])) { return $this->queryParams[$keyName]; } elseif (isset($this->postParams[$keyName])) { return $this->postParams[$keyName]; } return $default;
- 19. $key = (string)$key; $keyName = $this->getAlias($key) ?? $key; return $this->params[$keyName] ?? $this->queryParams[$keyName] ?? $this->postParams[$keyName]; PHP 7
- 20. 10 > 3LINES. NOT BAD.
- 21. IMPROVED STRONG TYPINGSUPPORT https://wiki.php.net/rfc/uniform_variable_syntax https://wiki.php.net/rfc/return_types
- 22. function calculateShippingTo($postalCode) { $postalCode =(int)$postalCode; } calculateShippingTo(“66048”); < PHP 7
- 23. Class/interface name (PHP5.0) self (PHP 5.0) array (PHP 5.1) callable (PHP 5.4) bool (PHP 7) float (PHP 7) int (PHP 7) string (PHP 7) Source: http://php.net/manual/en/functions.arguments.php#functions.arguments.type-declaration
- 24. function calculateShippingTo(int $postalCode) { //… } calculateShippingTo(“66048”); // $postalCode is cast to an integer PHP 7
- 25. function test(string $val){ echo $val; } test(new class {}); // Can’t convert: Fatal error: Uncaught TypeError: Argument 1 passed to test() must be of the type string, object given…
- 26. function test(string $val){ echo $val; } test(new class { public function __toString() { return "Hey, PHP[tek]!"; } }); // Outputs: string(14) "Hey, PHP[tek]!"
- 27. function calculateShippingTo(int $postalCode) { //… } //** separate file: **// declare(strict_types = 1); calculateShippingTo(“66048”); // Throws: Catchable fatal error: Argument 1 passed to calculateShippingTo() must be of the type integer, string given
- 28. FUNCTION RETURN TYPES •Return type goes after the function declaration: function combine($str1, $str2): string { // … } function addProduct(): Product { // … }
- 29. function calculateShippingTo(int $postalCode):float { return 5.11; } var_dump(echo calculateShippingTo(“66048”)); // float(5.11) PHP 7
- 30.
- 31.
- 32. <?php usort($values, function($a, $b){ if ($a == $b) { return 0; } return ($a < $b) ? -1 : 1; }); < PHP 7
- 33.
- 34. SPACESHIP OPERATOR • Workswith anything, including arrays. • 0 if equal • 1 if left > right • -1 if left < right echo 6 <=> 6; // Result: 0 echo 7 <=> 6; // Result: 1 echo 6 <=> 7; // Result: -1
- 35. <?php usort($values, function($a, $b){ return $a <=> $b; }); PHP 7
- 36.
- 37.
- 38. use MagentoFrameworkStdlibCookieCookieReaderInterface; use MagentoFrameworkStdlibStringUtils; useZendHttpHeaderHeaderInterface; use ZendStdlibParameters; use ZendStdlibParametersInterface; use ZendUriUriFactory; use ZendUriUriInterface; < PHP 7
- 39. use MagentoFrameworkStdlib{ CookieCookieReaderInterface, StringUtils }; use ZendHttpHeaderHeaderInterface; useZendStdlib{Parameters, ParametersInterface}; use ZendUri{UriFactory, UriInterface}; PHP 7
- 40. use MagentoFrameworkStdlib{ CookieCookieReaderInterface, StringUtils asUtils }; use ZendHttpHeaderHeaderInterface; use ZendStdlib{Parameters, ParametersInterface}; use ZendUri{UriFactory, UriInterface}; PHP 7
- 41.
- 42. return new classextends Product { function getWeight() { return 5; } }); // code testing, slight modifications // to classes ANONYMOUS CLASSES
- 43.
- 44. $closure = function($context){ return $context->value . "n"; }; $a = new class { public $value = "Hello"; }; $closure($a); // Output: "Hello" PHP 5.3
- 45. $closure = function(){ return $this->value . "n"; }; $a = new class { public $value = "Hello"; }; $aBound = $closure->bindTo($a); $closure(); // Output: "Hello" < PHP 7
- 46. $canVoidOrder = function(){ // executed within the $order context return $this->_canVoidOrder(); } $canVoidOrder = $canVoidOrder->bindTo($order, $order); echo $canVoidOrder(); MAGENTO
- 47. $closure = function(){ return $this->value . "n"; }; $a = new class { public $value = "Hello"; }; $b = new class { public $value = "Test"; }; echo $closure->call($a); // Output: "Hello" echo $closure->call($b); // Output: "Test" PHP 7
- 48.
- 49. function generator1() { for($i = 0; $i < 5; $i++) { yield $i; } for ($i = 0; $i < generator2(); $i++) { yield $i; } } function generator2() { /** … **/ } < PHP 7
- 50. function mergeOutput($gen1, $gen2) { $array1= iterator_to_array($gen1); $array2 = iterator_to_array($gen2); return array_merge($array1, $array2); } < PHP 7
- 51. function generator1() { for($i=0; $i<5; $i++) { yield $i; } yield from generator2(); } function generator2() { /** … **/ } // array_merge for generators. PHP 7
- 52. NULL COALESCE STRONG-TYPE SUPPORT SPACESHIPOPERATOR GROUPED USE DECLARATIONS ANONYMOUS CLASSES CLOSURE::CALL GENERATOR DELEGATION
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- 58. EXECUTION ORDER CHANGES •PHP <= 5.6 had a long list of execution order rules: • Most of the time, the parser executed from left to right. • Breaking changes for some frameworks and some code.
- 59.
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- 62.
- 63. EXCEPTIONS • Exceptions nowinherit the new Throwable interface.
- 64. try {} catch (Exception$e){ /***/ } try {} catch (Throwable $e) { /***/ }
- 65. EXCEPTIONS • New Errorclass for: • ArithmeticError • DivisionByZeroError • AssertionError • ParseError • TypeError
- 66. EXCEPTIONS try { $test =5 % 0; } catch (Error $e) { var_dump($e); } // throws DivisionByZeroError try { $test = “Test”; $test->go(); } catch (Error $e) { var_dump($e); } // throws Error
- 67.
- 68. UNSERIALIZE • Now takesan additional argument: $options • allowed_classes: • false: don’t unserialize any classes • true: unserialize all classes • array: unserialize specified classes
- 69. unserialize($value, [ ‘allowed_classes’ =>false ]); unserialize($value, [ ‘allowed_classes’ => [ ‘BlueModelsUserModel’ ] ]); PHP 7
- 70.
- 71.
- 72. BREAKING CHANGES • mysql_/eregfunctions removed. • https://pecl.php.net/package/mysql • Calling a non-static function statically. • ASP-style tags
- 73. BREAKING CHANGES • list()assigns variables in proper order now: • call_user_method() and call_user_method_array() removed. list($a[], $a[], $a[]) = [1, 2, 3]; // PHP 5.6 output: 3, 2, 1 // PHP 7 output: 1, 2, 3
- 74.
- 75.
- 76. PHP7 HAS NOT BEENWIDELY ADOPTED. YET.
- 77. 0.7% ADOPTION SO FAR. Source:https://w3techs.com/technologies/details/pl-php/all/all
- 78.
- 79. UPGRADE CONSIDERATIONS • PHP7is production-ready. • Few have adopted it. • If you release, you may encounter issues that haven’t been discussed online.
- 80. UPGRADE CONSIDERATIONS • Whatremoved functions does your code depend on? • https://github.com/sstalle/php7cc • Run your unit tests against your code on a box with PHP7. • Try to release on a new server: • Will give you a backup if something major happens.
- 81. • puphpet.com: choosePHP 7 as the version to install. • https://www.digitalocean.com/community/tutorials/ how-to-upgrade-to-php-7-on-centos-7 • https://www.digitalocean.com/community/tutorials/ how-to-upgrade-to-php-7-on-ubuntu-14-04 INSTALLING PHP7
- 82. FURTHER READING • https://leanpub.com/php7/read •Excellent read about every new PHP 7 feature. • http://php.net/manual/en/migration70.new- features.php • PHP’s documentation
- 83. TAKE-AWAYS • Take advantageof the new features. • Upgrade. • Encourage your friends about PHP7. • Together, we will get the industry moved to PHP7!
- 84.