PHP get variable in function from foreach loop

Question

I am working on some plugin in wordpress and I have following array and foreach loop with function in it.

Problem is that somehow I always getting $locale_key variable same as $code when $locale_key variable is inside function.

Please help.

$languages = array(
    array('af', 'af', 'Afrikaans'),
    array('ar', 'ar', 'العربية', 'rtl'),
    array('az', 'az', 'Azərbaycan'),
    array('be', 'bel', 'Беларуская мова'),
    array('bg', 'bg_BG', 'български'),
    array('bs', 'bs_BA', 'Bosanski'),
    array('ca', 'ca', 'Català'),
    array('cs', 'cs_CZ', 'Čeština'));

$lang = $_SESSION['lang'];

foreach ($languages as $key => $value) {
    $locale_key = $languages[$key][1];
    $code = $languages[$key][0];
    echo $locale_key; // Here i get for example "bs_BA"
    add_shortcode( $code, function($atts, $content = null, $locale_key) {
        global $lang;
        echo $locale_key; // And then here i get "bs"
        if ($lang == $locale_key) {
            return $content;
        }
    }); 
}

my expected output is $languages[$key][1] from array, but i always get $languages[$key][0] — Antonio
– Antonio, Commented Sep 2, 2015 at 11:21
for example when in foreach loop $code is 'bs' i want to $locale_key be 'bs_BA', and that work if I echo variable outside function, but when i echo variable inside function i get same as $code variable. function($atts, $content = null, $locale_key) { global $lang; echo $locale_key; }); I will get bs, not bs_BA what I need. — Antonio
– Antonio, Commented Sep 2, 2015 at 11:30

TobiasJ · Accepted Answer · 2015-09-02 11:39:31Z

1

Try:

$languages = array(
    array('af', 'af', 'Afrikaans'),
    array('ar', 'ar', 'العربية', 'rtl'),
    array('az', 'az', 'Azərbaycan'),
    array('be', 'bel', 'Беларуская мова'),
    array('bg', 'bg_BG', 'български'),
    array('bs', 'bs_BA', 'Bosanski'),
    array('ca', 'ca', 'Català'),
    array('cs', 'cs_CZ', 'Čeština'));

$lang = $_SESSION['lang'];

foreach ($languages as $key => $value) {
    $locale_key = $value[1];
    $code       = $value[0];
    add_shortcode( $code, function($atts, $content = null, $locale_key) {
        global $lang;
        if ($lang == $locale_key) {
            return $content;
        }
    }); 
}

When you use foreach($array as $key => $value) you can access the index via $key and the corresponding value via $value (even if that is an array too).

answered Sep 2, 2015 at 11:39

TobiasJ

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3 Comments

Antonio Over a year ago

foreach ($languages as $key => $value) { $locale_key = $value][1]; $code = $value[0]; echo $locale_key; // HERE I GET "bs_BA" add_shortcode( $code, function($atts, $content = null, $locale_key) { global $lang; echo $locale_key; // HERE I GET "bs" if ($lang == $locale_key) { return $content; } }); }

TobiasJ Over a year ago

@Antonio I think there is something wrong in your hook/callback function. But sadly I'm not using Wordpress so I cannot give you a solution. The only thing I can recommend you is to read the documentation but I think you already did that.

Antonio Over a year ago

here is calback function: function add_shortcode($tag, $func) { global $shortcode_tags; $shortcode_tags[ $tag ] = $func; }

It's Hamlet · Accepted Answer · 2015-09-02 11:32:31Z

0

<?php
$array = [
    [1, 2, 3],
    [3, 4, 5],
];

foreach ($array as list($a, $b, $c)) {
    // $a enthält das erste Element des verschachtelten Arrays
    // und $b enthält das zweite Element
    echo "A: $a; B: $b; C: $c\n";
}
?>

Try something like above, im sure you will find the solution.

edited Sep 2, 2015 at 11:32

answered Sep 2, 2015 at 11:20

It's Hamlet

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1 Comment

Antonio Over a year ago

This code give me same result as my. I think that problem is somewhere in function, not in loop.

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