determine if variable contains numbers only....

[gezeala]

I need help with the ereg() function in php..

Please help me make the code..

I have a variable which can contain a character or numbers..
I want to check if the variable only has numbers...I need to do this because I will pass this to a function in postgresql query..
I'm not well versed with the ereg() function so pls. help me..

How do I do this?

[mmilano]

no need for ereg, .. try this:

<?
if(is_numeric("$string"))
{
    // do somethin gif it has numbers
}
else
{
     // do soemthing else
}
?>

i learned this one tonight =)