Question

Which php array function should be used to match a string to the first part of a delimited line and return the second part of the delimited line? The reason I am using an array is because I have many delimited text lines in a file. ex:

contact-us.php = Contact Us- Test Bed

I need some way to match the pages filename to the first part of the delimited line, and return it’s second part. I have tried a few different array functions but I do not know which one to use or how to implement the array function assuming that I have found the correct one. This is the code that I devised and it is located in the head of the php file. Once the correct page title is chosen, I will simply print it into the title tags.

function getPageName()
{
    return substr($_SERVER["SCRIPT_NAME"],strrpos($_SERVER["SCRIPT_NAME"],"/")+1); // If one echo's this and the url is /TestBed/contact-us.php Output will be: contact-us.php
}

function pageTitleIdentifier ()
{
    $filename = 'http://localhost/TestBed/includes/apptop/title.txt';
    $mode = 'rb';
    $file_handle = fopen ($filename, $mode);

    while (!feof($file_handle) ) {
        $page_title_pair = fgets($file_handle); // This will start reading where the above while loop stopped line by line.
        $parts = explode('=', $page_title_pair);
        @ $pageTitle = $parts[0] . $parts[1]; // Part zero is the filename ex contact-us.php Part one is the Title ex Contact Us- Test Bed for that page.
    }

    fclose($file_handle);
}

So, what is the correct way to do this? Thank you very much!

Answer 1

First off, you may want to consider implementing a caching solution. To parse a file for EVERY request, on a high-traffic server, will definitely add un-necessary load.

Try this:

function pageTitleIdentifier ()
{
    $filename = 'http://localhost/TestBed/includes/apptop/title.txt';
    $mode = 'rb';
    $file_handle = fopen ($filename, $mode);

    while (!feof($file_handle)) {

        $page_title_pair = fgets($file_handle); 

        list($script, $title) = explode('=', $page_title_pair);

        // Uncomment below lines for debugging, they must line up exactly
        //   for the condition to be met, breaking the loop
        // var_dump($script);
        // var_dump(getPageName();

        // Because we reading from a file, might be some whitespace issues
        //  trim and strtolower ensures a true apples to apples comparison
        if (trim(strtolower($script)) === trim(strtolower(getPageName()))) {
            return $title;
        }            
    }

    fclose($file_handle);
}