call me dumb but please can someone help

[kannu]

hello,
after you read the question you would realize i am a true newbie in php, but what can i do now. i have to start somewhere.

my questions is that i am trying to create a simple "if then else" statement where i am trying to see if a string contains a set of letters. but i cannot find any function which can let me search if a string has those letters and continue in the if else statement.
for example :-

$wert = "catid52product34show"

if($wert == "product34")
{ do this }
else if($wert == "product35")
{ do that}

how can i search for "product34" within the variable $wert. and then proceed according on if then else statement

if someone can please help me out, i would really appreciate the same

thanks

[Kudose]

[man]strpos[/man] [man]eregi[/man] [man]preg_match[/man]

[bradgrafelman]

Note that the ereg*() functions should never be used and that this situation doesn't require regular expression patterns, so you could do something as simple as:

if(strpos('longstringoftextplusproduct41', 'product41') !== FALSE) {
    // found the string
} else {
    // didn't find the string
}