# Pass all the arguments to PHP.
output=$(php "$@")
# Perform UNIX->WINDOWS syntax replacements.
output="${output//$'\n'/$'\r'$'\n'}"
output="${output//\/mnt\/c/C:}"
output="${output//\//\\}"
# Echo corrected output.
echo $output

@echo off
 
setlocal ENABLEDELAYEDEXPANSION
 
rem Collect the arguments and replace:
rem  '\' with '/'
rem  'c:' with 'mnt/c'
rem  '"' with '\"'
set v_params=%*
set v_params=%v_params:\=/%
set v_params=%v_params:C:=/mnt/c%
set v_params=%v_params%
set v_params=%v_params:"=\"%
 
rem Call the windows-php inside WSL.
rem windows-php is just a script which passes the arguments onto
rem the original php executable and converts its output from UNIX
rem syntax to Windows syntax.
C:\Windows\system32\bash.exe -l -c "windows-php %v_params%"

    "php.validate.executablePath": "C:\\apps\\php.bat"

<?php
function iz_wpscfix_dir($uri) {
        $uris = explode('/', $uri);
        $result = array();
        foreach ($uris as $path) {
                if (strlen($path) > 250) {
                        $path = substr($path, 0, 220).'-'.md5($path);
                }
                $result[] = $path;
        }
        return implode("/",$result);
}
add_cacheaction('supercache_dir', 'iz_wpscfix_dir', 0);