使用$GET从文本文件中读取特定行，然后回显它 - Read specific line from text file using $GET, then echo it

Read specific line from text file using $GET, then echo it

我有一个已经创建并由用户附加的文本文件，我使用这种格式来附加它。

电影Title1;电影Rating1;Plot1;

电影Title2;电影Rating2;Plot2;

电影Title3;电影Rating3;Plot3;

等。等。

我已经设法修复了上面的问题，现在我想从文本文件中读取特定的行，然后回显它。这一行是通过$GET参数根据Movie Title找到的。

例如，我点击一个链接，在本例中是电影的标题，然后我通过$ get: movies.php获取标题名，将其更改为movies.php?title=MovieTitle。然后我得到这个当前的Movie Title名称并读取这一行并回显它。下面是我的代码:

//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, $string."'n");          
    fclose($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)); 
    $lines = explode ("'n",trim($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! 
    }
    }
?>

所以我想用电影标题和电影评级来回应它。我希望你能理解我的问题，提前谢谢!

试试这个代码

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];
     }
  }
}

首先你的语法有错误。其次，这就是数据库的作用，因为你的解决方案无法扩展。但是，要使其工作，请执行....

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];
     }
  }
}