What are the potential pitfalls of trying to access nested objects in PHP?

Accessing nested objects in PHP can be tricky because if any of the objects along the chain are null or do not exist, it can lead to a fatal error. To avoid this, you can use the null coalescing operator (??) to safely access nested objects without risking errors. 

// Example code to safely access nested objects using the null coalescing operator
if(isset($obj->property1->property2->property3)) {
    $value = $obj->property1->property2->property3;
} else {
    $value = null;
}
// Using the null coalescing operator
$value = $obj->property1->property2->property3 ?? null;

Keywords

nested objects PHP object-oriented programming error handling syntax errors

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