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phpjs

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php.js offers community built php functions in javascript

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function strrpos(haystack, needle, offset) { // From: http://phpjs.org/functions // + original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + bugfixed by: Onno Marsman // + input by: saulius // + bugfixed by: Brett Zamir (http://brett-zamir.me) // * example 1: strrpos('Kevin van Zonneveld', 'e'); // * returns 1: 16 // * example 2: strrpos('somepage.com', '.', false); // * returns 2: 8 // * example 3: strrpos('baa', 'a', 3); // * returns 3: false // * example 4: strrpos('baa', 'a', 2); // * returns 4: 2 var i = -1; if (offset) { i = (haystack + '').slice(offset).lastIndexOf(needle); // strrpos' offset indicates starting point of range till end, // while lastIndexOf's optional 2nd argument indicates ending point of range from the beginning if (i !== -1) { i += offset; } } else { i = (haystack + '').lastIndexOf(needle); } return i >= 0 ? i : false; }