I need to match following pattern using php Regular expression but it doesn't give expected out come.
ex:- need to match pattern 5555 5545 9930
$id = "4567 3423 4567";
$regex = "/^[1-9]\d{4} \d{4} \d{4}$/";
if (preg_match($regex, $id)) {
// Indeed, the expression "^[2-9]\d{2} \d{3} \d{4}$" matches the date string
echo "Found a match!";
}else {
// If preg_match() returns false, then the regex does not
// match the string
echo "The regex pattern does not match. :(";
}
If you want to match: 4 non-zero digits + space + 4 digits + space + 4 digits
^([1-9]){4} \d{4} \d{4}$ should do the trick
I think the safest way to modify the existing regex is by adding an alternative to the first [2-9]\d{2} \d{3}:
^(?:[2-9]\d{2} \d{3}|\d{4} \d{4}) \d{4}$
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
See the regex demo
Details:
^ - start of string(?:[2-9]\d{2} \d{3}|\d{4} \d{4}) - one of the alternatives:
[2-9]\d{2} \d{3} - a digit from 2 to 9, any 2 digits, a space and 3 digits| - or \d{4} \d{4} - 4 digits, space, 4 digits (for the new string types) - a space\d{4} - 4 digits$ - end of string.See the PHP demo:
$id = "4567 3423 4567";
$regex = "/^(?:[2-9]\d{2} \d{3}|\d{4} \d{4}) \d{4}$/";
if (preg_match($regex, $id)) {
echo "Found a match!";
} else {
echo "The regex pattern does not match. :(";
}
Simple edit of your regular expression will be
^[1-9]\d{3} \d{4} \d{4}
"/^[2-9]\d{2,3} \d{3,4} \d{4}$/"or - if you do not want to match mixed input types -"/^(?:[2-9]\d{2} \d{3}|\d{4} \d{4}) \d{4}$/"