What are the techniques for performance tuning of PHP array to object conversion?

Optimize PHP array to object conversion performance tips: use ready-made methods (stdClass class) to avoid using complex arrays to cache conversion results and use the splat operator to instantiate the object pool

PHP Array to Object Performance Tuning Tips

Converting an array to an object is a common operation in PHP, but if not handled properly, it may have a serious impact on performance. This article will provide some tips to help you optimize the array-to-object conversion process.

Use ready-made methods

PHP provides the stdClass class to quickly and easily convert arrays to objects. Using this method is much faster than looping through the array and setting the properties yourself:

$array = ['name' => 'John Doe', 'age' => 30];
$object = (object) $array;

Avoid using complex arrays

Complex or nested arrays reduce the array to an object conversion speed. If possible, use simple, one-dimensional arrays.

Cache conversion results

If you need to convert the same array to an object multiple times, consider caching the conversion results. You can save the converted object in a variable and reuse it when needed.

Using the splat operator

The splat operator allows you to pass array elements as a single argument to a function or method. This can simplify the array-to-object conversion process:

$array = ['name', 'age'];
$object = new stdClass();
foreach ($array as $key) {
    $object->{$key} = null;
}

Instanced Object Pool

For large or complex arrays, instantiated object pooling can improve performance. The object pool will pre-create and cache a certain number of objects, thus avoiding the need to create new objects for each conversion.

Practical case

Original method

$array = [
    'name' => 'John Doe',
    'age' => 30,
    'address' => [
        'street' => 'Main Street',
        'city' => 'Anytown',
        'state' => 'CA',
    ]
];

$object = new stdClass();
foreach ($array as $key => $value) {
    $object->{$key} = $value;
}

Optimized method

$array = [
    'name' => 'John Doe',
    'age' => 30,
    'address' => (object) [
        'street' => 'Main Street',
        'city' => 'Anytown',
        'state' => 'CA',
    ]
];

$object = (object) $array;

By applying these optimizations, you can significantly improve the performance of your PHP applications when converting arrays to objects.

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