Online PHP editor | rfc for fh93m

@ 2024-10-08T08:18:50Z

<?php

$contacts = [/* a few Contact entities in there */];

// ExampleA

$names = retrieve_names($contacts);
$isPrimaryContact = is_primary_contact($contacts);
$countries = retrieve_countries($contacts);

// It is easy to provide simple functions: this makes both the calling code easy to read
// and each functions, `retrieve_name` and co. easy to implement.
// BUT, this comes at a cost: instead of having a O(n) operation you make it a O(3n) because
// in each function you would iterate over the array once more.

// ExampleB: a more performant alternative. Depending of the logic that needs to be crammed there
// it can easily become a lot less readable.

$names = [];
$isPrimaryContact = false;
$countries = [];

foreach($contacts as $contact) {
    $names[] = $contact->name;
    $isPrimaryContact = $isPrimaryContact || $contact->isPrimary;
    $countries[] = $contact->address->country;
}

Output for git.master, git.master_jit: Fatal error: Uncaught Error: Call to undefined function retrieve_names() in /in/fh93m:7 Stack trace: #0 {main} thrown in /in/fh93m on line 7
Process exited with code 255.

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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