PHP | Ds\Vector jsonSerialize() Function

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The Ds\Vector::jsonSerialize() function is an inbuilt function in PHP which is used to return the element which can be converted to JSON.

Syntax:

mixed public JsonSerializable::jsonSerialize( void )

Parameters: This function does not accepts any parameter.

Return Value: This function returns the values of the vector in the form which can be converted to JSON.

Below programs illustrate the Ds\Vector::jsonSerialize() function in PHP:

Program 1:

<?php 
class vector implements JsonSerializable { 
    public function __construct(array $arr) { 
        $this->array = $arr; 
    } 
  
    public function jsonSerialize() { 
        return $this->array; 
    } 
} 
  
// Declare an array 
$arr = [1, 2, 3, 4, 5]; 
  
echo("Elements after converting to JSON convertible form\n"); 
  
echo json_encode(new vector($arr), JSON_PRETTY_PRINT); 
  
?> 

Output:

Elements after converting to JSON convertible form
[
    1,
    2,
    3,
    4,
    5
]

Program 2:

<?php 
class vector implements JsonSerializable { 
    public function __construct(array $arr) { 
        $this->array = $arr; 
    } 
  
    public function jsonSerialize() { 
        return $this->array; 
    } 
} 
  
// Declare an array 
$arr = ["zambiatek", "for", "zambiatek"]; 
  
echo("Elements after converting to JSON convertible form\n"); 
  
echo json_encode(new vector($arr), JSON_PRETTY_PRINT); 
  
?> 

Output:

Elements after converting to JSON convertible form
[
    "zambiatek",
    "for",
    "zambiatek"
]

Reference: http://php.net/manual/en/ds-vector.jsonserialize.php

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