What are the alternatives to array to object in PHP?

王林
Release: 2024-04-29 16:03:01
Original
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Alternatives to converting arrays to objects in PHP are: type cast: for example $obj = (object) $arr; use a custom class: define a class and assign values ​​to properties through the constructor, for example new Person($ arr); Use a third-party library: such as the Inflector::toObject() method provided by Doctrine\Common\Inflector\Inflector.

PHP 中数组转对象的替代方案有哪些?

An alternative to converting array to object in PHP

Preface

In PHP During development, it is often necessary to convert arrays into objects for easy operation. However, the built-in array_to_object function may have some limitations. This article will explore alternatives to converting arrays to objects in PHP and provide practical examples.

Alternative 1: Use type casting

$arr = ['name' => 'John', 'age' => 30];
$obj = (object) $arr;

echo $obj->name; // 输出:John
echo $obj->age; // 输出:30
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Alternative 2: Use a custom class

class Person {
  public $name;
  public $age;

  public function __construct(array $arr) {
    $this->name = $arr['name'];
    $this->age = $arr['age'];
  }
}

$arr = ['name' => 'Jane', 'age' => 25];
$obj = new Person($arr);

echo $obj->name; // 输出:Jane
echo $obj->age; // 输出:25
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Alternative 3: Use a library

Third-party libraries (such as Doctrine\Common\Inflector\Inflector) provide some practical methods to convert arrays to objects.

use Doctrine\Common\Inflector\Inflector;

$arr = ['first_name' => 'John', 'last_name' => 'Doe'];
$obj = Inflector::toObject($arr);

echo $obj->getFirstName(); // 输出:John
echo $obj->getLastName(); // 输出:Doe
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Practical case

Scenario: Constructing user objects from database query results

$dbResult = $mysqli->query("SELECT * FROM users");
$users = [];

while ($row = $dbResult->fetch_assoc()) {
  $users[] = (object) $row;
}

foreach ($users as $user) {
  echo $user->name; // 输出:用户名
  echo $user->email; // 输出:用户邮箱
}
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Conclusion

The above alternatives provide multiple ways to convert arrays to objects in addition to built-in functions to meet different development needs. Choosing the right alternative can optimize code performance and improve code readability.

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