Help with strstr()

Greeting all,

I have a question pertaining to strstr(). Is there anyway that I can use strstr so that it will only look for strings that are at the beginning of a string, and not possible somewhere in the string?

To clarify, I am using strstr to search through a text file, one line at a time, and I want to stop at a specific line that starts with “AC …”. However, my use of strstr is picking up any occurrence of AC in the file. I have a working solution but, it is not very robust.

Here is the code I am using

[CODE]if($switch AND strstr(“$text”, ‘AC’))
{
// $token = strtok($text, ” nt”) ;
// $seq_id = $token[1] ;
// $switch = False ;

$line = str_split($text) ;
$seq_id.$count = $line[5].$line[6].$line[7].$line[8].$line[9].$line[10] ;

// Don’t stop at anymore “AC” strings that may be in file
$switch = False ;
[/CODE]

Later on in the while loop I turn the switch back to “True” so that if another line that begins with AC is present I will begin again.

Does anyone have a suggestion?

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