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@ 2026-03-11T03:13:53Z

<?php

function berekenSom($a, $b) {
    return $a + $b;
}

$resultaat = "";

if (isset($_GET['getal1']) && isset($_GET['getal2'])) {
    $resultaat = berekenSom($_GET['getal1'], $_GET['getal2']);
}

?>

<form method="get">
    Getal 1: <input type="number" name="getal1">
    Getal 2: <input type="number" name="getal2">
    <button type="submit">optellen</button>
</form>

<?php
if ($resultaat !== "") {
    echo "Resultaat: " . $resultaat;
}
?><?php

function berekenSom($a, $b) {
    return $a + $b;
}

$resultaat = "";

if (isset($_GET['getal1']) && isset($_GET['getal2'])) {
    $resultaat = berekenSom($_GET['getal1'], $_GET['getal2']);
}

?>

<form method="get">
    Getal 1: <input type="number" name="getal1">
    Getal 2: <input type="number" name="getal2">
    <button type="submit">optellen</button>
</form>

<?php
if ($resultaat !== "") {
    echo "Resultaat: " . $resultaat;
}
?>

Output for git.master_jit, git.master: Fatal error: Cannot redeclare function berekenSom() (previously declared in /in/77rXF:3) in /in/77rXF on line 27 Stack trace: #0 {main}
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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