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The DomainException class

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

Giriş

Exception thrown if a value does not adhere to a defined valid data domain.

Sınıf Sözdizimi

class DomainException extends LogicException {
/* Miras alınan özellikler */
protected string $message = "";
private string $string = "";
protected int $code;
protected string $file = "";
protected int $line;
private array $trace = [];
private ?Throwable $previous = null;
/* Miras alınan yöntemler */
public Exception::__construct(string $message = "", int $code = 0, ?Throwable $previous = null)
final public Exception::getCode(): int
final public Exception::getFile(): string
final public Exception::getLine(): int
final public Exception::getTrace(): array
}
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User Contributed Notes 4 notes

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35
mateusz dot charytoniuk at gmail dot com
12 years ago
<?php
function renderImage($imageResource, $imageType)
{
switch (
$imageType) {
case
'jpg':
case
'jpeg':
header('Content-type: image/jpeg');
imagejpeg($imageResource);
break;
case
'png':
header('Content-type: image/png');
imagepng($imageResource);
break;
default:
throw new
DomainException('Unknown image type: ' . $imageType);
break;
}
imagedestroy($imageResource);
}
?>
up
16
ja2016 at wir dot pl
7 years ago
I think this kind of exception is perfect to throw when expected the type of parameter, value etc. is good, but its value is out of domain. Look at RangeException:
>>Exception thrown to indicate range errors during program execution. Normally this means there was an arithmetic error other than under/overflow. This is the runtime version of DomainException.<<
So, this kind of exception is designed for logic error

When datatype is wrong, the better way is throwing InvalidArgumentException.

<?php
// Here, use InvalidArgumentException
function media($x) {
switch (
$x) {
case
image:
return
'PNG';
break;
case
video:
return
'MP4';
break;
default:
throw new
InvalidArgumentException ("Invalid media type!");
}
}
?>
This is completly diffirent situation than this:
<?php
// Here, use DomainException
$object = new Library ();
try {
$object->allocate($x);
} catch (
toFewMin $e) {
throw new
DomainException ("Minimal value to allocate is too high").
}
?>
The simillar situation, but problem occurs during runtime:
<?php
class library {
function
allocate($x) {
if (
$x<1000)
throw new
RangeException ("Value is too low!")
}
}
?>
Summary: DomainException corresponds to RangeException and we should use them in simillar situations. But first exception is designed to use when we are sure the problem is with our project, third-part elements etc. (simply: logical error), the second way is designed to use when we are sure the problem is with input data or environment (simply: runtime error).
up
14
chmielewski dot thomas at gmail dot com
9 years ago
<?php

function divide($divident, $divisor) {
if(!
is_numeric($divident) || !is_numeric($divisor)) {
throw new
InvalidArgumentException("Function accepts only numeric values");
}
if(
$divisor == 0) {
throw new
DomainException("Divisor must not be zero");
}
return
$divident / $divisor;
}
up
5
Cruiser
6 years ago
Quote: "In data management and database analysis, a data domain refers to all the values which a data element may contain."

Source: https://en.wikipedia.org/wiki/Data_domain

This exception has confused me a bit, DataDomainException, or DataTypeException may have been more descriptive.
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