problematin ereg() pattern matching

[Anon]

Hi,
I have a problem trying to find whether a pattern (a string) occurs in a string.

eg
$num can either be "1.12", "1.32, 1.123", "1.12, 1.123" etc

if I want to search the string for 1.12 and return true if it is present how would I do that?

I tried
ereg("1.12", $num)
but that returned true for the set that contained "1.32, 1.123"

also, I can't search for "1.12," since not all sets have a comma in them.

There must be a way to search for a specific term?

[Anon]

never mind - found it:

ereg("(^1.12\$)|( 1.12\$)|(^1.12,)|( 1.12,)", $string);

to find 1.12 in any of the following string values:

1.12
xx.xx, 1.12
1.12, xx.xx
xx.xx, 1.12, xx.xx

Phew, that was easy. Bitch to read tho!