search for something inside array

[gsmith]

I am currently reading a file into an array:

$newthing=file(filename);

each line I read in will be of the general format:$uname[0]=username; $known_as[0]=realname;$uname[1]=username; known_as[1]=realname;etc.I have another variable, we'll call it $x. $x will equal the username portion of one of the above lines. I want to do other things (that I do know how to do) ONLY IF $x is NOT in the line that I've read into the $newthing array. How can I search and determine this line by line?

[sbrownii]

Each line (element in the array) will be a string.Use some string functions. Ever heard of php.net?Here is one function for finding a string in a string -> http://us2.php.net/manual/en/function.stristr.phpMake note of the list on the left - those are other string functions. Have a look....

[gsmith]

Before your response, I had searched PHP.net.I tried using strpos()

foreach($temp as $value)    {      if(!(strpos($value, $usr)))      {        fwrite($fs, $value);      }    }

$temp is the array I got using the file() command. I want to write to the file $fs all the lines in $temp, except for the line that contains within it somewhere the same exact value that $usr holds.The above code has worked if the line in question is the last line of the file. But if it's in the middle, this code stops writing the remaining lines back to the file once the one line in question is found.

[hacknsack]

Try generating a string and then write the string to the file:

$output = '';foreach($temp as $value)   {     if(!(strpos($value, $usr)))     {       $output .= "$value\n";     }   }fwrite($fs, $output);

[edit] fixed the typos[/edit]-hs