Apakah PHP Relevan dengan 2021?

Fokusnya sudah lama berpindah dari PHP ke JavaScript dan Python. Namun demikian, versi baru telah keluar, dan tes kinerja menunjukkan kemajuan yang baik. Seberapa relevan PHP saat ini? Di bawah potongan - pemikiran pengembang, yang terus memberikan preferensi kepadanya.

Sejarah singkat PHP

PHP 1994 . , -, Personal Home Page Tools (« »). PHP Tools. , : . .

, open source 1995 . , PHP.

— PHP 8.0.

PHP?

— . , . PHP , . , . 

, . :

echo "1" + 3;
echo 1 + "3";
echo "1" + "3";
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

4, . , , .

, .

PHP 5.3. , . - . 

, , Payments_Provider_Processor_Provider_SomeExternalServiceProvider



, SomeExternalServiceProvider



. .

.

, , . , , , . , , , . .

:

• strpos(string $haystack, string $needle, int $offset = 0): int|false
  
  
  
  : ;

  
  
  
  
  

• strsplit(string $string, int $length = 1): array
  
  
  
  : ;

  
  
  
  
  

• explode(string $separator, string $string, int $limit = PHP_INT_MAX): array
  
  
  
  : .

  
  
  
  
  

: str



, str_



, . $string



str_split



, explode



. — , .

— , , . - , $SERVER



$REQUEST



. : . . , , .

PHP?

, . PHP 7 , , .

Type hints

PHP: type hints, , . :

function isValueSomething($value) {}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

type hints, :

function isValueSomething(string $value): bool {}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, , -. , , type hints , IDE .

7.4 PHP :

class Person {
    public string $firstName;

    public string $lastName;

    public int $age;

    public ?string $job;
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, Person



, integer . — .

PHP :

• : fn ($x, $y) => $x + $y;
  
  
  
  

  
  
  
  
  

• : $value = $array['key'] ?? 'default value';
  
  
  
  

  
  
  
  
  

• : return $cache['key'] ??= computeSomeValue('key');
  
  
  
  

  
  
  
  
  

• : $first = ['a', 'b']; $second = ['c', 'd']; $final= […$first, …$second];
  
  
  
  

  
  
  
  
  

• : array_fill(start_index: 0, num: 100, value: 50);
  
  
  
  

  
  
  
  
  

• : 299_792_458
  
  
  
  

  
  
  
  
  

.

Constructor promotion

Person



:

class Person {
    private string $firstName;

    private string $lastName; 

    protected int $age;

    public ?string $job;

    public function __construct(
        string $firstName,
        string $lastName,
        int $age,
        ?string $job
    ){
        $this->firstName = $firstName;
        $this->lastName = $lastName;
        $this->age = $age;
        $this->job = $job;
    }
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

PHP 8 :

class Person {
    public function __construct(
        private string $firstName,
        private string $lastName,
        protected int $age,
        public ?string $job
    ){}
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, ?

Nullsafe-

JavaScript, PHP . , PHP:

<?
if (is_null($repository)) {
    $result = null;
} else {
    $user = $repository->getUser(5);
    if (is_null($user)) {
        $result = null;
    } else {
        $result = $user->name;
    }
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

PHP null. nullsafe- :

$result = $repository?->getUser(5)?->name;

?

, , type hints. . :

function doSomething(int|string $value): bool|array {}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, PHP , .

, PHP . , PHP 7 PHP 5.6, , . Phoronix , PHP 8 PHP 5.6. , .

Kinsta WordPress. WordPress 5.3.

:

• WordPress 5.3 PHP 5.6: 97,71 /

  
  
  
  
  

• WordPress 5.3 PHP 7.0: 256,81 /

  
  
  
  
  

• WordPress 5.3 PHP 7.1: 256,99 /

  
  
  
  
  

• WordPress 5.3 PHP 7.2: 273,07 /

  
  
  
  
  

• WordPress 5.3 PHP 7.3: 305,59 /

  
  
  
  
  

• WordPress 5.3 PHP 7.4: 313,42 /

  
  
  
  
  

PHP 8, , 7.4 5.6, .

PHP , . Golang, PHP Python, PHP, . , , PHP . 

, , -, , , open source.

, PHP , . , , , , .