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function usort (inputArr, sorter) {
    // Sort an array by values using a user-defined comparison function  
    // 
    // version: 912.1315
    // discuss at: http://phpjs.org/functions/usort    // +   original by: Brett Zamir (http://brett-zamir.me)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // %        note 1: This function deviates from PHP in returning a copy of the array instead
    // %        note 1: of acting by reference and returning true; this was necessary because
    // %        note 1: IE does not allow deleting and re-adding of properties without caching    // %        note 1: of property position; you can set the ini of "phpjs.strictForIn" to true to
    // %        note 1: get the PHP behavior, but use this only if you are in an environment
    // %        note 1: such as Firefox extensions where for-in iteration order is fixed and true
    // %        note 1: property deletion is supported. Note that we intend to implement the PHP
    // %        note 1: behavior by default if IE ever does allow it; only gives shallow copy since    // %        note 1: is by reference in PHP anyways
    // *     example 1: stuff = {d: '3', a: '1', b: '11', c: '4'};
    // *     example 1: stuff = usort(stuff, function (a, b) {return(a-b);});
    // *     results 1: stuff = {0: '1', 1: '3', 2: '4', 3: '11'};
    var valArr = [], k = '', i = 0, strictForIn = false, populateArr = []; 
    if (typeof sorter === 'string') {
        sorter = this[sorter];
    } else if (sorter instanceof Array) {
        sorter = this[sorter[0]][sorter[1]];    }
 
    // BEGIN REDUNDANT
    this.php_js = this.php_js || {};
    this.php_js.ini = this.php_js.ini || {};    // END REDUNDANT
 
    strictForIn = this.php_js.ini['phpjs.strictForIn'] && this.php_js.ini['phpjs.strictForIn'].local_value;
    populateArr = strictForIn ? inputArr : populateArr;
     
    for (k in inputArr) { // Get key and value arrays
        if (inputArr.hasOwnProperty) {
            valArr.push(inputArr[k]);
            if (strictForIn) {                delete inputArr[k];
            }
        }
    }
    try {        valArr.sort(sorter);
    } catch (e) {
        return false;
    }
    for (i = 0; i < valArr.length; i++) { // Repopulate the old array        populateArr[i] = valArr[i];
    }
 
    return strictForIn ? true : populateArr;
}

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stuff = {d: '3', a: '1', b: '11', c: '4'};
stuff = usort(stuff, function (a, b) {return(a-b);});

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stuff = {0: '1', 1: '3', 2: '4', 3: '11'};