function stringStartsWith($haystack,$needle,$case=true) {
if ($case){
return strpos($haystack, $needle, 0) === 0;
}
return stripos($haystack, $needle, 0) === 0;
}
function stringEndsWith($haystack,$needle,$case=true) {
$expectedPosition = strlen($haystack) - strlen($needle);
if ($case){
return strrpos($haystack, $needle, 0) === $expectedPosition;
}
return strripos($haystack, $needle, 0) === $expectedPosition;
}
echo stringStartsWith("Hello World","Hell");
echo stringEndsWith("Hello World","World");