How can you iterate through object keys in PHP using foreach loop?

To iterate through object keys in PHP using a foreach loop, you can use the get_object_vars() function to retrieve all the properties of the object as an associative array, and then iterate through the keys of this array using a foreach loop. 

// Create an object
$obj = new stdClass();
$obj->name = 'John';
$obj->age = 30;
$obj->city = 'New York';

// Get object properties as an associative array
$properties = get_object_vars($obj);

// Iterate through object keys using foreach loop
foreach ($properties as $key => $value) {
    echo $key . ': ' . $value . PHP_EOL;
}

Keywords

PHP foreach loop object keys iteration associative array

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