使用$ GET从文本文件中读取特定行，然后回显它

I have a text file which is already created and appended by user and I am using this format to append it. New line after every input and separated by semicolon:

Movie Title1; Movie Rating1; Plot1;

Movie Title2; Movie Rating2; Plot2;

Movie Title3; Movie Rating3; Plot3;

Etc. etc.

I have managed to fix the above and now I want to read a specific line from the text file then echo it. This specific line is to be found through $GET parameter and based on Movie Title.

For example I click on a link, in this case a title from a movie, then I get the title name through $GET: movies.php to change to movies.php?title=MovieTitle. And then I get this current Movie Title name and read this specific line and echo it. Here is my code:

//Writes input from user to movies.txt
<?php
    if (isset($_POST["submit"])) {
        $title = $_POST['movieTitle'];
        $rating = $_POST['movieRatings'];
        $plot = $_POST['plot'];


    $handle = fopen('movies.txt', 'a');
    $names_array = array("$title","$rating","$plot");
    $string = implode(';', $names_array);
    fwrite($handle, $string."
");          
    fclose($handle);
    }   
    ?>

//Reads line from movies.txt and adds it to a li, with movie title becoming a link
<?php
    $filename = 'movies.txt';

    $handle = fopen($filename, 'r');

    $datain = fread($handle, filesize($filename)); 

    $lines = explode ("
",trim($datain));
    foreach($lines as $line)
    {
        list($title,$rating,$plot) = explode(";",$line,3);
        echo '<li><a href="movies.php?title='.$title.'">'.$title.'</a><span>'.$rating.'</span></li>';
    }
    ?>//So far so good

//And now I want to read title name, and based on the
//title name find a specific line with rating and plot 
//which belongs to current clicked movie title...
<?php
if (isset($_GET["title"])) {
    $readin = file('movies.txt');

    foreach ($readin as $fname) 
    $names_array = explode(';', $fname);
    {
            echo '<h1>'.$names_array[0]./*MovietitleName*/'</h1>''<h2>'.$rating.'</h2>'.$plot;//So I want to echo the specific "movieTitle movie, movieRating and moviePlot". What I've done so far is wrong, I need help here! 
    }
    }
?>

So I want to echo it out with movie title being in and and movie rating .I hope you understand my question, thanks in advance!

First off you have errors in your syntax. Secondly this is what a database is for your solution is not going to scale. However to get it to work do something like....

if (isset($_GET["title"])) {
  $readin = file('movies.txt');

  foreach ($readin as $fname) 
  {
     $names_array = explode(';', $fname);//this has to go here
     if($_GET['title']===$names_array[0]){//only echo if the title mathces
        echo '<h1>'.$names_array[0]./*MovietitleName*/'</h1>''<h2>'.$names_array[1].'</h2>'.$names_array[2];
     }
  }
}

Try this code

if (isset($_GET["title"])) {
  $readin = file('movies.txt');

  foreach ($readin as $fname) 
  {
     $names_array = explode(';', $fname);//this has to go here
     if($_GET['title']==$names_array[0]){
        echo '<h1>'.$names_array[0].'</h1><h2>'.$names_array[1].'</h2>'.$names_array[2];
     }
  }
}