PHP 7.4.24 Released!

La classe InvalidArgumentException

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

Introduction

Exception émise si un argument ne correspond pas au type attendu.

Synopsis de la classe

class InvalidArgumentException extends LogicException {
/* Propriétés héritées */
protected string $message;
protected int $code;
protected string $file;
protected int $line;
/* Méthodes héritées */
public Exception::__construct(string $message = "", int $code = 0, ?Throwable $previous = null)
final public Exception::getMessage(): string
final public Exception::getCode(): int
final public Exception::getFile(): string
final public Exception::getLine(): int
final public Exception::getTrace(): array
final public Exception::getTraceAsString(): string
public Exception::__toString(): string
final private Exception::__clone(): void
}
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User Contributed Notes 1 note

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Joey at anti-culture dot net
10 years ago
In my opinion this exception is invaluable for validating arguments- for example providing strict typing a la C:

<?php
function tripleInteger($int)
{
  if(!
is_int($int))
    throw new
InvalidArgumentException('tripleInteger function only accepts integers. Input was: '.$int);
  return
$int * 3;
}

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

?>
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