How to create a simple PHP cookie language toggle?

前端未结

关注

 5  1331

I\'m trying to set up, what I thought would be, a simple language switch. I thought I\'d use PHP cookies, but they\'re not behaving as intended.

I\'ve read a few coo

相关标签:

5条回答

我在风中等你

2020-12-14 05:13

Thanks for all the suggestions - @Mob set me in the right direction, i.e. processing the cookie on another page and then sending you back to the first.

I did a bit more thinking and experimenting and I've finally solved it. I'll post the code below incase anyone else wants to use this.

On your main page put this:

<form action="language_switcher.php" method="post">
    <select name="lang">
        <option value="en"<?php if( $_COOKIE["language"] == "en" ) { echo " selected"; } ?>>English</option>
        <option value="ru"<?php if( $_COOKIE["language"] == "ru" ) { echo " selected"; } ?>>Russian</option>
    </select>
    <input type="submit" value="Select Language">
</form>

<p>Language: <?php if( isset( $_COOKIE["language"] ) ) { echo $_COOKIE["language"]; } else { echo "<em>not set</em>"; } ?></p>

Then in another file called 'language_switcher.php' put the following code:

$lang = "en";
if( isset( $_POST["lang"] ) ) {
    $lang = $_POST["lang"];
    setcookie ( 'language', $lang, time() + 60*60*24*30, '/', 'mydomain.com');
    header( "Location: /previous_page_url.php" );
}

The user chooses a language and clicks 'Select Language'. The form then sends the form value to 'language_switcher.php', which sets the cookie and then sends the user back to the previous page.

Done! :)

0 讨论(0)

挽巷

2020-12-14 05:19

I used PHP's $_SERVER['PHP_SELF'] to refresh current page and take into account the language selected.

Sample code enclosed. file name : language_switcher.php

<?php

    error_reporting(E_ERROR);

    $lang = "en";

    if( isset( $_COOKIE["language"] ) ) { 
       $lang = $_COOKIE["language"]; 
    }

    if( isset( $_POST["lang"] ) ) {
       $lang = $_POST["lang"];
       setcookie ( 'language', $lang, time() + 60*60*24*30, '/','localhost');
       $refresh = $_SERVER['PHP_SELF'];
       header( "Location: $refresh");
    }
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Test Page Language Toggle</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>

<body>

    <?php 
      // Text definitions
      $text = array(
      'en' => array(
            'selectlang' => 'Select Language',
            'lingua' => 'Language: ',
            'filename' => 'You are in this location: '
          ),
      'fr' => array(
            'selectlang' => 'Séléctionner',
            'lingua' => 'Langue: ',
            'filename' => 'Vous lisez ce fichier: '
          )
      );

    ?>

    <form action="language_switcher.php" method="post">
        <select name="lang">
            <option value="en"<?php if( $_COOKIE["language"] == "en" ) { echo "selected"; } ?>>English</option>
            <option value="fr"<?php if( $_COOKIE["language"] == "fr" ) { echo " selected"; } ?>>Français</option>
        </select>
        <input type="submit" value="<?php echo $text[$lang][selectlang]; ?>">
    </form>

    <p><?php echo $text[$lang][lingua]; if( isset( $_COOKIE["language"] ) ) { echo $_COOKIE["language"]; } else { echo "<em>not set</em>"; } ?></p>

    <br>
    <p><?php echo $text[$lang][filename] . $_SERVER['PHP_SELF']; ?></p>

</body>
</html>

0 讨论(0)

醉话见心

2020-12-14 05:33

if ( !empty($_GET['language']) ) {
    $_COOKIE['language'] = $_GET['language'] === 'en' ? 'en' : 'nl';
} else if ( empty($_COOKIE['language']) ) {
    $_COOKIE['language'] = 'nl';
}
setcookie('language', $_COOKIE['language']);

0 讨论(0)

终归单人心

2020-12-14 05:33
Try this one,
```
if ( !isset( $_GET['lang'] ) ) { 
    if ( isset( $_COOKIE['lang'] ) ) { 
        $lang = $_COOKIE['lang']; 
    } 
    else { 
        $lang = 'en'; 
    } 
} 
else { 
    $lang = (string)$_GET['lang']; 
    setcookie( 'lang', $lang, time() + 60*60*24*30 ); 
}
```
If the lang directive is not set in GET, check if there is a cookie set.

If it is use its value, or use 'en' by default. If the lang directive is set, set a cookie.

It's pretty much the same code, but a bit optimized. (It's better to put conditions that appear the most on top of ifs.
0 讨论(0)
发布评论:

提交评论
- 加载中...
余生分开走

2020-12-14 05:35
A cookie is not accessible until the setting page has been reloaded or another page has been accessed (in other words, you cannot set and access a cookie in the same page).

Check this code out :
```
if( $_GET['lang'] ) {
    $lang = (string)$_GET['lang'];
    setcookie( 'lang', $lang, time() + 60*60*24*30,'/' );
} elseif(  !$_GET['lang']) ) {
    $lang = 'en';
} else {
    $lang = $_GET['lang'];
}
header("Location: redirect_file.php")
```
Then in redirect_file.php, you redirect back to the cookie page. Perform some checks if you want to avoid redirect loops.
0 讨论(0)
发布评论:

提交评论
- 加载中...