How to convert PHP object array into JSON string array

PHP is a very popular server-side programming language, and JSON (JavaScript Object Notation) is a lightweight data exchange format. In PHP, we can convert an object array into a JSON string array, which facilitates data interaction between different languages ​​and platforms.

Below, we will introduce in detail how to convert PHP's object array into a JSON string array.

1. Create an array of PHP objects

First, we need to create an array of PHP objects so that we can convert it into a JSON string array.

$person = array(
    'name' => 'John Smith',
    'age' => 30,
    'email' => 'john.smith@example.com'
);

The above code defines an array named $person, which contains three key-value pairs. $person['name'] returns a string value 'John Smith', $person['age'] returns a number 30, $person['email'] returns a string value 'john.smith@example.com' .

2. Use the json_encode() function to convert the PHP object array into a JSON string array

Next, we can use the built-in function json_encode() in PHP to convert $person Convert to JSON string array.

$json = json_encode($person);

In the above code, the json_encode() function converts the $person array into a JSON string array and assigns it to a variable named $json.

3. Output JSON string array

Finally, we can use the echo statement to output $json to the browser.

echo $json;

When the browser accesses this PHP file, it will display the following JSON string array:

{
    "name": "John Smith",
    "age": 30,
    "email": "john.smith@example.com"
}

Note: JSON string arrays are represented by braces ({}), property names and properties Use colons (:) to separate values ​​and commas (,) to separate properties.

Conclusion

This article introduces how to convert an array of PHP objects into a JSON string array. By using the json_encode() function, we can easily convert PHP data into a format that can be interpreted by other languages ​​and platforms. This is very useful in web applications as it allows us to transfer data between different systems.

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