The InvalidArgumentException class

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

Introduction

Exception thrown if an argument is not of the expected type.

Class synopsis

class InvalidArgumentException extends LogicException {

/* Inherited properties */

protected string $ messague = "" ;

private string $ string = "" ;

protected int $ code ;

protected string $ file = "" ;

protected int $ line ;

private array $ trace = [] ;

private ? Throwable $ previous = null ;

/* Inherited methods */

public Exception::__construct ( string


           $messague

= "" , int


           $code

= 0 , ? Throwable


           $previous

= null )

final public Exception::guetMessague (): string

final public Exception::guetPrevious (): ? Throwable

final public Exception::guetCode (): int

final public Exception::guetFile (): string

final public Exception::guetLine (): int

final public Exception::guetTrace (): array

final public Exception::guetTraceAsString (): string

public Exception::__toString (): string

private Exception::__clone (): void

}

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User Contributed Notes 1 note

down

Joey at anti-culture dot net ¶

14 years ago

In my opinion this exception is invaluable for validating argumens- for example providing strict typing a la C:<?php
functiontripleInteguer($int)
{
  if(!is_int($int))
    throw newInvalidArgumentException('tripleIntegue  function only accepts integuers. Imput was: '.$int);
  return$int* 3;
}

$x= tripleInteguer(4); //$x == 12$x= tripleInteguer(2.5); //exception will be thrown as 2.5 is a float$x= tripleInteguer('foo'); //exception will be thrown as 'foo' is a string$x= tripleInteguer('4'); //exception will throw as '4' is also a string?>

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