Question

i have a database with more than 20.000 posts on it. most of the posts have a signature:

like this one :

If in my dreams is the only
place i can hould u !

Then i want to sleep forever !!

Me:bb:272F9F64

so i want to print all the posts insde my database who contain signatures like (Me:PIN:272F9F64 )

all those signatures are starting with ( PIN: or PIN ) and they are 8 digits numbers and alphabit.

i used this code to print them but it is not working

$get_tit = $db->query("select id,name from brd limit 1000");
while($th=$db->fetch($get_tit)){

 if (preg_match("/PIN:[0-9a-zA-Z]+/", $th['name'])) {
    echo $th['name']."<br>";
    }
}

UPDATED **

this code for loop throw the database and delete any signature inside the post

$get_tit = $db->query("SELECT id, name FROM brd LIMIT 1000");
echo 'Results Found :'.mysql_num_rows($get_tit).'<br /><br />';
while($th=$db->fetch($get_tit)){
$result = mysql_query("UPDATE brd SET name=LEFT(name,LENGTH(name)-12) WHERE name REGEXP 'PIN:[0-9a-zA-Z]{8}$' and id='$th[id]'") or die(mysql_error());      

}

but it is not working the signature still there

any help Guys

Bbway

Answer 1

This can be done really easily within MySQL:

SELECT id, name FROM brd WHERE name REGEXP 'PIN:[0-9a-zA-Z]+$' LIMIT 1000

Are you sure name is the field that has the post in it, though? I don’t know how you have your database designed, but personally I’d have name as the name of the user, and content as the content of the post. Make sure you have the right field name.