What potential issues can arise when using "->" in PHP?

One potential issue that can arise when using "->" in PHP is if the object being accessed is null or not set, it will result in a "Trying to get property of non-object" error. To solve this issue, you can use the null coalescing operator (??) to check if the object is set before accessing its properties. 

// Potential issue when accessing properties of an object using "->"
$object = null;

// This will result in a "Trying to get property of non-object" error
$value = $object->property;

// To solve this, use the null coalescing operator to check if the object is set
$value = $object->property ?? null;

Keywords

arrow operator object-oriented programming method chaining syntax error undefined property

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