Development Information

April 23, 2010

Database Class – Like

Filed under: Database Class Information,Tutorials — judda @ 1:13 pm

It has come to my attention that a few people have been stumbling upon how to use the ‘LIKE’ command with wildcards using this database class. ┬áBecause of this, I will provide a brief sample of how to use it.

Normally when someone writes a query which uses ‘LIKE’, it is written as follows:

$query = "SELECT `email` FROM `users` WHERE `username` LIKE '%Tom%'";
 
$res = $db -> query ( $query );

However, because of how this database class currently works, this will cause issues (it looks for the percent sign (%) and then tries to find a parameter type to bind to it).  So instead of doing it this way, you must do the following:

$query = "SELECT `email` FROM `users` WHERE `username` LIKE %s";
 
$res = $db -> query ( $query, '%Tom%' );

This will bind the wildcards along with the actual value into the query and end up doing exactly what you need it to do.

Sorry for the inconvenience.

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