>hi, sorry to trouble you, but i am a beginner php programmer and i have a
quick question. i got your email from a php newsgroup.
>
>i'm using a statement like:
>
>if ( preg_match("/\\$word/i",$keywordHash[$keyID][0] > 0)
>{
>...
>}
>
>which works fine if word is a word like "reference" or even "p4dp8", but
when the word is "4xAGP" i get this message:
>
>"Warning: back reference: to non-existant pattern at offset 6"
>
>or $word="4x":
>"Warning: back reference: to non-existant pattern at offset 3"
>
>
>do you have any idea what would cause this?
>any help you can provide would be very appreciated.
>
>thanks,
>Andrew
>
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