(PHP 7, PHP 8)
There are three scenarios where a TypeError may be thrown. The first is where the argument type being passed to a function does not match its corresponding declared parameter type. The second is where a value being returned from a function does not match the declared function return type. The third is where an invalid number of arguments are passed to a built-in PHP function (strict mode only).
final public Error::getMessage ( ) : string
final public Error::getPrevious ( ) : Throwable
final public Error::getCode ( ) : mixed
final public Error::getFile ( ) : string
final public Error::getLine ( ) : int
final public Error::getTrace ( ) : array
final public Error::getTraceAsString ( ) : string
public Error::__toString ( ) : string
final private Error::__clone ( ) : void}
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https://www.php.net/manual/en/class.typeerror.php