[SOLVED] Detect word from a string

[mekdonel]

I called a query from database which will display a line of string e.g id1id2id3id4....

 

How do i detect if the string contain the word 'id4' for example. I'm using PHP 4.3.10

 

Thanks in advance 

[metrostars]

if(strpos("$string", 'id4')) {echo "The line contains id4";} else {echo "The line doesn't contain id4";}

[mekdonel]

Thanks for the fast reply. Problem solved