Online PHP editor | output for FP9rp

@ 2018-12-06T10:09:29Z

<?php

function stringMultiplicate($first, $second) {
    // Create array include result of 1 number in $second string * first
    $result = [];
    $strFirst = (string)$first;
    $strSecond = (string)$second;

    $maxLength = 0;
    for ($i = strlen($strSecond) - 1; $i >= 0; $i--) {
        $index = $i;
        $number = (int)$strSecond[$i];
        $result[$index] = '';

        $k = strlen($strSecond) - 1 - $i;
        $div = 0;
        for ($j = (strlen($strFirst) - 1); $j >= 0; $j--) {
            while ($k != 0) {
                $result[$index] .= '0';
                $k--;
            }

            $next = ($number * $strFirst[$j] + $div);
            if (strlen($next) > 1 && $j != 0) {
                $result[$index] .= ((string)$next)[strlen($next) - 1];
                $div = ((string)$next)[0];
                
            } else {
                $result[$index] .= $number * $strFirst[$j] + $div;
                $div = 0;
            }
        }

        if (strlen($result[$index]) > $maxLength) {
            $maxLength = $result[$index];
        }

        $result[$index] = strrev($result[$index]);
    }

    $multi = [];
    // for ($j = 0; $j < $maxLength; $j++) {
        $sum = 0;
        for ($i = 0; $i < count($result); $i++) {
            var_dump($result[$i]);
            if (!isset($result[$i][$j])) {
                $result[$i][$j] = 0;
            }
            $sum += (int)$result[$i][$j];
        }
        $multi[$i] = $sum;
    // }
    return $multi;
}

var_dump(stringMultiplicate(123456, 345));
var_dump(123456*345);

Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: string(8) "37036800" string(7) "4938240" string(6) "617280" array(1) { [3]=> int(0) } int(42592320)
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(8) "37036800" string(7) "4938240" string(6) "617280" array(1) { [3]=> int(0) } int(42592320)
Output for 7.0.33: string(8) "37036800" Warning: Illegal string offset: -1 in /in/FP9rp on line 47 Notice: Uninitialized string offset: -1 in /in/FP9rp on line 49 string(7) "4938240" Warning: Illegal string offset: -1 in /in/FP9rp on line 47 Notice: Uninitialized string offset: -1 in /in/FP9rp on line 49 string(6) "617280" Warning: Illegal string offset: -1 in /in/FP9rp on line 47 Notice: Uninitialized string offset: -1 in /in/FP9rp on line 49 array(1) { [3]=> int(0) } int(42592320)
Output for 5.6.38: Parse error: syntax error, unexpected '[' in /in/FP9rp on line 25
Process exited with code 255.

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