Very simple format converter from .net datetime format to php datetime format

DotNetDateTimeFormatConverter.php

<?php
declare(strict_types=1);

class DotNetDateTimeFormatConverter
{
    /**
     * @param string $dotNetDateTimeFormat
     * @return string
     */
    public function toPhpDateTimeFormat(string $dotNetDateTimeFormat): string
    {
        $mapping = $this->dotNetDateTimeFormatToPhpDateTimeFormatMapping();

        return strtr($dotNetDateTimeFormat, $mapping);
    }

    /**
     * @return array
     */
    protected function dotNetDateTimeFormatToPhpDateTimeFormatMapping(): array
    {
        return [
            'dddd' => 'l',
            'ddd' => 'D',
            'dd' => 'd',
            'd' => 'j',
            'fffffff' => null,
            'ffffff' => null,
            'fffff' => null,
            'ffff' => null,
            'fff' => null,
            'ff' => null,
            'f' => null,
            'FFFFFFF' => null,
            'FFFFFF' => null,
            'FFFFF' => null,
            'FFFF' => null,
            'FFF' => null,
            'FF' => null,
            'F' => null,
            'gg' => null,
            'g' => null,
            'HH' => 'H',
            'H' => 'G',
            'hh' => 'h',
            'h' => 'g',
            'K' => null,
            'mm' => 'i',
            'm' => null,
            'MMMM' => 'F',
            'MMM' => 'M',
            'MM' => 'm',
            'M' => 'n',
            'ss' => 's',
            's' => null,
            'tt' => 'A',
            't' => null,
            'yyyyy' => null,
            'yyyy' => 'Y',
            'yyy' => null,
            'yy' => 'y',
            'y' => null,
            'zzz' => 'P',
            'zz' => null,
            'z' => null,
        ];
    }
}