How to convert string into object array in php

In PHP, strings and arrays are two different data types. Sometimes, we need to convert a string into an array in order to operate on the elements. This article will explain how to convert a string into an array of array objects.

1. Use the explode function to convert a string into a one-dimensional array

PHP provides the explode function, which can split a string into a one-dimensional array according to the specified delimiter. . For example:

$str = "apple,banana,orange";
$arr = explode(",", $str);
print_r($arr);

This code will output the following results:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

Based on this one-dimensional array, we can use loops and other operations again to convert it into a more complex array object array.

2. Convert a one-dimensional array into an object array

In PHP, arrays and objects can be converted to each other. Using PHP's type conversion tool, we can convert a one-dimensional array into an object array. For example:

$arr = array('apple', 'banana', 'orange');
$obj_arr = (object)$arr;
print_r($obj_arr);

This code will output the following results:

stdClass Object
(
    [0] => apple
    [1] => banana
    [2] => orange
)

Based on this object array, we can use loops and other operations again to convert it into a more complex array of object arrays .

3. Use the json_decode function to convert a JSON string into an array of array objects

In some scenarios, we may need to convert a JSON string into an array of array objects. PHP provides the json_decode function, which can convert a JSON string into a PHP array or object.

For example:

$json_str = '{"fruits":["apple","banana","orange"]}';
$arr = json_decode($json_str, true);
print_r($arr);

This code will output the following results:

Array
(
    [fruits] => Array
        (
            [0] => apple
            [1] => banana
            [2] => orange
        )

)

Based on this array of array objects, we can use loops and other operations again to convert it into a more complex array of array objects.

Summary

This article introduces three methods of converting strings into arrays of array objects: using the explode function to convert strings into one-dimensional arrays, converting one-dimensional arrays into object arrays, and using The json_decode function converts a JSON string into an array of array objects. Through these three methods, we can conveniently operate various types of data in PHP and complete various tasks more efficiently.

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