Is it necessary to use namespaces as per PHP's PSR-1 coding standard?

Asked Apr 02 '23 at 16:57

Active Apr 02 '23 at 16:57

Viewed 46 times

I am new to following the coding standard PSR for PHP, specifically conforming to PSR-1 and PSR-12. Now I am confused about one thing.

That is, is it necessary to use namespaces as per the PSR-1 standard? There's no explicit mention of the fact that it's a MUST to use them.

Also, let's suppose I have the following code in a single file:

<?php

class A
{}

class B extends A
{}

class C extends A
{}

Based on the PSR-1 standard (and its mention of namespaces and classes), is this code OK, or do I have to create a separate file for each class, along with a separate namespace for each file?

asked Apr 02 '23 at 16:57

coderboy

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Perhaps look at PSR 4 for an approach to namespaces and files. – Nigel Ren Apr 02 '23 at 17:13
Having them in a single file is useful for PSR-4, specially if you plan on making this available via composer later down the line – Jaquarh Apr 02 '23 at 17:13
PHP Code Sniffer will report all PSR-1, PSR-2 or PSR-12 issues automatically https://github.com/squizlabs/PHP_CodeSniffer – Andy Preston Apr 03 '23 at 17:52
Attn close voters: this question is about compliance with a published standard; it is not a matter of opinion. – TylerH Apr 03 '23 at 20:49
PSR-1 also explains how to format class constants, but that doesn't mean it is necessary to use class constants. – Álvaro González Apr 04 '23 at 10:16

Is it necessary to use namespaces as per PHP's PSR-1 coding standard?

0 Answers0