Search an array or file

[Anon]

Hello

I have a file that has around 4000 lines. Each line represent a keyword. This files a result of indexing my site.

How can I search for a keyword in this file?

I was doing this

$keywords_array= file('keywords.dat');

but then I didn't know how to search for a specific key word in the array

Thank you

[maxholman]

You can use the in_array() functions to search an array.

For example...

$keywords = file('keywords.dat');

if (in_array($word,$keywords)) {

//do some stuff

}

If you need to find the position of $word in the array, use array_search(), which will return the array key upon finding $word, instead of just returning true.