Online PHP editor | rfc for KiYSi

@ 2022-10-15T14:43:08Z

<?php


$src = ["apple", "cherry", "grape", "lemon", "orange", "strawberry", "cherry", "cherry"];
$dst = ["apple", "banana", "cherry", "orange", "pear", "cherry"];

$result = [];
while ($src && $dst) {
    if ($src[0] === $dst[0]) { // align identical values
        $result[] = [array_shift($src), array_shift($dst)];
        continue;
    }

    $earliestSrcMatch = array_search($src[0], $dst);
    $earliestDstMatch = array_search($dst[0], $src);

    if ($earliestSrcMatch === $earliestDstMatch) { //both false (not 0)
        $result[] = [array_shift($src), null];
        $result[] = [null, array_shift($dst)];
        continue;
    } elseif (
        $earliestDstMatch === false
        || (
            $earliestSrcMatch !== false
            && $earliestSrcMatch < $earliestDstMatch
        )
    ) {
        while ($dst && $src[0] !== $dst[0]) {
            $result[] = [null, array_shift($dst)];
        }
    } elseif (
        $earliestSrcMatch === false
        || $earliestSrcMatch > $earliestDstMatch
    ) {
        while ($src && $src[0] !== $dst[0]) {
            $result[] = [array_shift($src), null];
        }
    }
}
while ($src) {
    $result[] = [array_shift($src), null];
}
while ($dst) {
    $result[] = [null, array_shift($dst)];
}

echo "<table border=1>
";
foreach ($result as $i => [$s, $d]) {
    printf(
        "<tr>
             <td>%d</td>
             <td>%s</td>
             <td>%s</td>
         </tr>\n",
         ++$i,
         $s,
         $d
    );
}
echo "</table>";

Output for git.master, git.master_jit, rfc.property-hooks: <table border=1> <tr> <td>1</td> <td>apple</td> <td>apple</td> </tr> <tr> <td>2</td> <td></td> <td>banana</td> </tr> <tr> <td>3</td> <td>cherry</td> <td>cherry</td> </tr> <tr> <td>4</td> <td>grape</td> <td></td> </tr> <tr> <td>5</td> <td>lemon</td> <td></td> </tr> <tr> <td>6</td> <td>orange</td> <td>orange</td> </tr> <tr> <td>7</td> <td>strawberry</td> <td></td> </tr> <tr> <td>8</td> <td></td> <td>pear</td> </tr> <tr> <td>9</td> <td>cherry</td> <td>cherry</td> </tr> <tr> <td>10</td> <td>cherry</td> <td></td> </tr> </table>

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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2016-08-14 Arrow functions - withdrawn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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