<?php
$id = "4567 3423 4567";
$regex = "/^(?:[2-9]\d{2} \d{3}|\d{4} \d{4}) \d{4}$/";
echo "Found a match!";
} else {
echo "The regex pattern does not match. :(";
}
PD9waHAKCiAkaWQgPSAiNDU2NyAzNDIzIDQ1NjciOwogJHJlZ2V4ID0gIi9eKD86WzItOV1cZHsyfSBcZHszfXxcZHs0fSBcZHs0fSkgXGR7NH0kLyI7CmlmIChwcmVnX21hdGNoKCRyZWdleCwgJGlkKSkgewoJZWNobyAiRm91bmQgYSBtYXRjaCEiOwp9IGVsc2UgewoJCWVjaG8gIlRoZSByZWdleCBwYXR0ZXJuIGRvZXMgbm90IG1hdGNoLiA6KCI7Cn0=