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RE: [PHP-DB] regular expression help
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| Matthias steinböck 2004-06-24, 3:55 pm |
| hi!
is this correct: you want to check if there are two letters in the
password wich do not surround a digit? if so this is what you need:
<?php
// dies
$password = 'alfgoesswimming';
// dies too
$password = 'a2lf4g2o4e7s9s3w9i0m5m7i0n3g';
// survives
$password = 'a2l5f4g2o4e7s9s3w9i0m5m7i0n3g';
$found = array();
$pattern = '#[a-z_]{2}#i';
if(preg_match_all($pattern, $password, $found)>0) {
die('You must have a number between 2 letters in your password ... 0-9');
} else {
die('password accepted');
}
?>
greez ma
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| Matthias steinböck 2004-06-24, 3:55 pm |
| ok... this still does not do what you want, because it does not consider
that only digits should be between the letters... here is the correct
solution:
<?php
// dies
$password = 'alfgoesswimming';
// dies too
$password = 'a2lf4g2o4e7s9s3w9i0m5m7i0n3g';
// survives
$password = 'a2$5l5f4g2o4e7s9s3w9i0m5m7i0n3g';
$found = array();
$pattern = '#[^0-9]{2}#i';
if(preg_match_all($pattern, $password, $found)>0) {
die('You must have a number between 2 letters in your password ... 0-9');
} else {
die('password accepted');
}
?>
hth greez ma
Matthias Steinböck wrote:
> hi!
>
> is this correct: you want to check if there are two letters in the
> password wich do not surround a digit? if so this is what you need:
>
> <?php
>
> // dies
> $password = 'alfgoesswimming';
> // dies too
> $password = 'a2lf4g2o4e7s9s3w9i0m5m7i0n3g';
> // survives
> $password = 'a2l5f4g2o4e7s9s3w9i0m5m7i0n3g';
>
>
> $found = array();
>
> $pattern = '#[a-z_]{2}#i';
>
> if(preg_match_all($pattern, $password, $found)>0) {
> die('You must have a number between 2 letters in your password ...
> 0-9');
> } else {
> die('password accepted');
> }
>
> ?>
>
>
> greez ma
>
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