locutus
Version:
Locutus other languages' standard libraries to JavaScript for fun and educational purposes
16 lines (15 loc) • 556 B
JavaScript
export function stripos(fHaystack, fNeedle, fOffset) {
// discuss at: https://locutus.io/php/stripos/
// parity verified: PHP 8.3
// original by: Martijn Wieringa
// revised by: Onno Marsman (https://twitter.com/onnomarsman)
// example 1: stripos('ABC', 'a')
// returns 1: 0
const haystack = (fHaystack + '').toLowerCase();
const needle = (fNeedle + '').toLowerCase();
let index = 0;
if ((index = haystack.indexOf(needle, fOffset)) !== -1) {
return index;
}
return false;
}