PHP检查数组匹配条件中的值然后回显出该特定值

问题描述：

I'm trying to display movie information from the XML list that matches post title.

$movie_title is the variable of the movie name.

Now I have 2 problems:

If title doesn't match then else statement will echo out "No match!" for each move that doesn't match condition of the if statement.
How to limit result only on the first movie that match the title.

I'm also wondering if there is some better way to do this.

$movie_title = get_the_title();
$movies = simplexml_load_file('http://www.kolosej.si/spored/xml/2.0/');

foreach($movies as $movie) {

    $movie_list = $title=$movie->title;

    if((strpos($movie_list, $movie_title)) !== false) {

        echo $original_title=$movie->original_title . '<br>';
        echo $description=$movie->plot_outline;

    } else {
        echo 'No match!';
    }
}

答

This would work, by setting a $found when you actually find a matching movie title and only outputting a No Match if the $found is not set

<?php
$movie_title = get_the_title();
$movies = simplexml_load_file('http://www.kolosej.si/spored/xml/2.0/');
$found = false;

foreach($movies as $movie) {

    $movie_list = $title=$movie->title;

    if((strpos($movie_list, $movie_title)) !== false) {

        echo $original_title=$movie->original_title . '<br>';
        echo $description=$movie->plot_outline;
        $found = true;
        break;  // assuming there will only be one, else leave this out
    }

}
if ( ! $found ) {
    echo 'No match!';
}

答

replace your code with the following code

<?php 
$movie_title = get_the_title();
$movies = simplexml_load_file('http://www.kolosej.si/spored/xml/2.0/');
$array_m =  (array) $movies ;

if(in_array($movie_title,array_column($array_m,'title'))) 
{
    echo $original_title=$movie->original_title . '<br>';
    echo $description=$movie->plot_outline;

} 
else 
{
    echo 'No match!';
}
?>

答

You could use in_array() as suggested in the comments, or alter your code slightly, so that you cancel the loop, when you found a match, or when the loop finished without finding one, you display "No match"

Be careful: in_array() does not check for substings, like you want, but only for whole movie titles.

 $movie_title = get_the_title();
 $movies = simplexml_load_file('http://www.kolosej.si/spored/xml/2.0/');

foreach($movies as $movie) {

  $movie_list = $title=$movie->title;

  if((strpos($movie_list, $movie_title)) !== false) {
    echo $original_title=$movie->original_title . '<br>';
    echo $description=$movie->plot_outline;
    $found = true;
    break;
  }
}
if(!$found)
  echo "Not found!";

PHP检查数组匹配条件中的值然后回显出该特定值

相关推荐