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JOSE HERRADA
Asked: 2020-05-21 13:07:21 +0800 CST 2020-05-21 13:07:21 +0800 CST

Regular expression that validates PHP cedula

  • 772

I am making a regular expression that validates the Venezuelan identity card and I succeed

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 ​​like this:

$cedula = 18.842.389;

that is, I want my regular expression to take into account the . let the user enter

php

1 Answers

  1. Best Answer

    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 after 0 to 9, which will verify that they are only numbers, we add the point; you do the test and with a point it shows the array with the positions and if you remove them or put something else as a middle dash it shows you There was no result

    But I need them to be with any special character

    So instead of the dot symbol you put \W but in capital letters and with that it validates that you put special characters between the numbers 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 end of string
    \s Match any white space
    \d Match any digit
    \D Match any character that is not a digit
    \w Match any character that can be part of a word (letter, number, hyphen underscore )
    \W Match any character that can NOT be part of a word (letter, number, underscore)
    \A Start of a string.
    \z End of a string.

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