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<?php
namespace Ajax\service;
class JString {
public static function contains($hay,$needle){
return strpos($hay, $needle) !== false;
}
public static function startswith($hay, $needle) {
return substr($hay, 0, strlen($needle)) === $needle;
public static function endswith($hay, $needle) {
return substr($hay, -strlen($needle)) === $needle;
public static function isNull($s){
return (!isset($s) || NULL===$s || ""===$s);
public static function isNotNull($s){
return (isset($s) && NULL!==$s && ""!==$s);
jcheron /
phalcon-jquery
