Read ASCII file for specific syntax

[Anon]

Hello all,
How can I make php read a .htaccess file and check to see if it has a specific syntax alread?

In other words if .htaccess already has:

Syntax MoreSyntax here

then I want php to notice that the syntax is there, delete that line and add a new line at the end of the file with a new syntax. I got it to open and append to the end of the file:

if (file_exists($counterfile)) {
print "The file exists!";
// open file for append to end and write
$fp = fopen ("$counterfile", "aw");

	// Search for existing Counterfile code		     

    // write the params as name value pairs
    fputs ($fp, "$counter_syntax\n");

}

[Anon]

I would first read the file into an array of lines and look at each line to see if it is the line you're looking for.

For example, assume we're looking for "Options" line and want to add "+ExecCGI":

---

$lines = file($filename);

$i = 0;

foreach ($lines as $line) {

if (ereg("^Options ", $line)) {
	$options_line = $i;
	print "Found the line";
} else {
	print "Line not found";
}
$i++;

}

// create an array of the current options
$options = explode(" ", eregi_replace("^options ", "", $lines[$options_line]));

// see if the option +ExecCGI already exists
foreach ($options as $option) {

if ($option == "+ExecCGI") {
	$found = TRUE;
	break;
}

}

// if it doesn't exist, add it
if (!$found) {
push_array("+ExecCGI", $options)
$lines[$options_line] = implode(" ", $options);
$fcontents = implode("\n\r", $lines);
// write the file
$fp = fopen ($filename, "aw");
fputs ($fp, $fcontents);
}

---

Hope this helps.

Lacey