locutus/esm/php/funchand/get_defined_functions.js

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

import { ensurePhpRuntimeState, getPhpGlobalScope } from "../_helpers/_phpRuntimeState.js";
import { toPhpArrayObject } from "../_helpers/_phpTypes.js";
export function get_defined_functions() {
    //      discuss at: https://locutus.io/php/get_defined_functions/
    // parity verified: PHP 8.3
    //     original by: Brett Zamir (https://brett-zamir.me)
    //     improved by: Brett Zamir (https://brett-zamir.me)
    //          note 1: Returns an array of global function names. Unlike PHP,
    //          note 1: JavaScript doesn't distinguish between user and internal functions.
    //       example 1: var $funcs = get_defined_functions()
    //       example 1: var $result = Array.isArray($funcs) && $funcs.length > 0
    //       returns 1: true
    ensurePhpRuntimeState();
    const arr = [];
    const already = {};
    const globalScope = getPhpGlobalScope();
    for (const i in globalScope) {
        try {
            const topLevelValue = globalScope[i];
            if (typeof topLevelValue === 'function') {
                if (!already[i]) {
                    already[i] = 1;
                    arr.push(i);
                }
            }
            else if (typeof topLevelValue === 'object' && topLevelValue !== null) {
                const nestedObject = toPhpArrayObject(topLevelValue);
                for (const j in nestedObject) {
                    if (typeof nestedObject[j] === 'function' && !already[j]) {
                        already[j] = 1;
                        arr.push(j);
                    }
                }
            }
        }
        catch (_e) {
            // Some objects in Firefox throw exceptions when their
            // properties are accessed (e.g., sessionStorage)
        }
    }
    return arr;
}