Use PHP functions in JavaScript

JavaScript soundex

Calculate the soundex key of a string

function soundex (str) {
    // Calculate the soundex key of a string  
    // 
    // version: 1001.2911
    // discuss at: http://phpjs.org/functions/soundex    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +    tweaked by: Jack
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman
    // +      input by: Brett Zamir (http://brett-zamir.me)    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // *     example 1: soundex('Kevin');
    // *     returns 1: 'K150'
    // *     example 2: soundex('Ellery');
    // *     returns 2: 'E460'    // *     example 3: soundex('Euler');
    // *     returns 3: 'E460'
    var s = '';
    var i, j, l, p = isNaN(p) ? 4 : p > 10 ? 10 : p < 4 ? 4 : p;
    var m = {        BFPV: 1,
        CGJKQSXZ: 2,
        DT: 3,
        L: 4,
        MN: 5,         R: 6
    };
    var r = (s = (str+'').toUpperCase().replace(/[^A-Z]/g, '').split('')).splice(0, 1);
    var sl = 0;
     sl = s.length;
    for (i = -1, l = sl; ++i < l;) {
        for (j in m) {
            if (j.indexOf(s[i]) + 1 && r[r.length-1] != m[j] && r.push(m[j])) {
                break;            }
        }
    }
 
    return r.length > p && (r.length = p), r.join('') + (new Array(p - r.length + 1)).join('0');}

external links: original PHP docs | raw js source

Examples

» Example 1

Running

1	soundex('Kevin');

Should return

'K150'

» Example 2

Running

1	soundex('Ellery');

Should return

'E460'

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

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