locutus/esm/php/info/getenv.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

import { getPhpGlobalEntry, getPhpObjectEntry } from "../_helpers/_phpRuntimeState.js";
export function getenv(varname) {
    //      discuss at: https://locutus.io/php/getenv/
    // parity verified: PHP 8.3
    //     original by: Brett Zamir (https://brett-zamir.me)
    //       example 1: getenv('LC_ALL')
    //       returns 1: false
    const processValue = getPhpGlobalEntry('process');
    const hasProcessLike = typeof processValue !== 'undefined';
    if (hasProcessLike) {
        return false;
    }
    if (typeof processValue !== 'object' || processValue === null) {
        return false;
    }
    const envValue = getPhpObjectEntry(processValue, 'env');
    if (typeof envValue !== 'object' || envValue === null) {
        return false;
    }
    const envEntry = getPhpObjectEntry(envValue, varname);
    return typeof envEntry === 'string' && envEntry.length > 0 ? envEntry : false;
}