(PHP 5 >= 5.1.0, PHP 7, PHP 8)
Serializable::serialize — String representation of object
abstract public Serializable::serialize ( ) : string
Should return the string representation of the object.
This function has no parameters.
Returns the string representation of the object or null
Throws Exception when returning other types than strings and null
.
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https://www.php.net/manual/en/serializable.serialize.php