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help with preg match

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Join Date: Apr 2007

Posts: 33

Reputation: realnsleo is an unknown quantity at this point

Solved Threads: 0

realnsleo

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Light Poster

help with preg match

May 24th, 2007

hi there,
how do i validate names like surname and first name with the preg_match function???

baba

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Join Date: May 2007

Posts: 68

Reputation: johny_d is an unknown quantity at this point

Solved Threads: 4

johny_d

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Junior Poster in Training

Re: help with preg match

May 24th, 2007

Depends on how you think your users first name and surname would be.
For example, let's say the first name would be a single word, 4 to 20 letters and surname would be one or two words, each between 3 to 20 letters.
You would have something like this:

 Help with Code Tags 
 php Syntax (Toggle Plain Text) 
<?php
$name = 'Jackson';
$surname = 'George Michael';
if (preg_match ('/^[a-z]{4,20}$/i',$name)) {
 echo "Good name";
 }
else {
 echo "Bad name";
 }
 
if (preg_match ('/^[a-z]{3,20}(| [a-z]{3,20})$/i',$surname)) {
 echo "Good surname";
 }
else {
 echo "Bad surname";
 }
 
?>
<?php
$name = 'Jackson';
$surname = 'George Michael';
if (preg_match ('/^[a-z]{4,20}$/i',$name)) {
 echo "Good name";
 }
else {
 echo "Bad name";
 }
 
if (preg_match ('/^[a-z]{3,20}(| [a-z]{3,20})$/i',$surname)) {
 echo "Good surname";
 }
else {
 echo "Bad surname";
 }

?>