I am making a regular expression that validates the Venezuelan identity card and I achieve it
if(preg_match_all("/(\d*[0-9]{2})/", $cedula, $resultado)){
print_r($resultado);
} else {
echo "No hubo resultado";
}
The problem is that I want the user to enter the values in this way:
$cedula = 18.842.389;
that is, I want my regular expression to take into account the. that the user enters
Your regular expression should look like this
<?php
$cedula = "18.842.389";
if(preg_match_all("/(\.d*[0-9]{2})/", $cedula, $resultado)){
print_r($resultado);
} else {
echo "No hubo resultado";
}
As notes, before the letter d and then from 0 to 9 it will verify that just numbers we add the point; you do the test and with point shows the array with the positions and if you remove them or put another thing like middle guion shows you There was no result
So instead of the point symbol you put \ W but it's capitalized and with that you validate that you enter between the figures special characters look
<?php
$cedula = "18.842.389";
if(preg_match_all("/(\W\d*[0-9]{2})/", $cedula, $resultado)){
print_r($resultado);
} else {
echo "No hubo resultado";
}
I leave you a list for special characters:
$ Match at the end of the string
\ s Match with any White space
\ d Match with any digit
\ D Match with any character other than a digit
\ w Match with any character that can be part of a word (letter, number, low script)
\ W Match with any character that CAN NOT be part of a word (letter, number, underscore)
\ A Start of a string.
\ z End of a string.