CODEWITHSUNDEEP
phpwordpress
Jacky lou
Jacky lou

Reputation: 13

Warning: Invalid argument supplied for foreach() php wordpress

I have this PHP code that produces a warning:

Warning: Invalid argument supplied for foreach() php wordpress

Here is the code:

<?php   
    $post_status1  = 'publish'; 
    $post_type1 = 'page';
    $featucat = "about";
    $featucount = "1";

    $my_query = new WP_Query('post_status='. $post_status1 .'&post_type='. $post_type1.'');  
    if ($my_query->have_posts()){
        while ($my_query->have_posts()) : $my_query->the_post();

            $front_values = get_post_custom_values('Homepage_Blog_01p', get_the_ID());
            foreach ( $front_values as $front_key => $result_value ) {
                if($result_value == 'about') {
?>

                    <div class="thewidgets">
                        <?php
                        $description_values = get_post_custom_values('Description_Field', get_the_ID());
                        foreach ( $description_values as $description_key => $description_value ) {
                            echo $description_value;

                        }
                        ?>
                        <a href="<?php the_permalink(); ?>" title="Read the whole post" class="rm">Read More</a>
                    </div>
    <?php } } endwhile; } ?>

Here is the full error:

Warning: Invalid argument supplied for foreach() in 
D:\PROGRAM FILES\wamp\www\westchester\wp-content\themes\
computerrepair\footer.php on line 22"

What am I doing wrong?

Upvotes: 0

Views: 5402

Answers (3)

Jai Prakash
Jai Prakash

Reputation: 59

<?php wp_head(); ?>

Add this code in the head tag. I think it will solve your warning - Warning: Invalid argument supplied for foreach() in C:\wamp64\www\development\wp-includes\script-loader.php on line 2652

Upvotes: 0

Eric Leschinski
Eric Leschinski

Reputation: 153922

How to reproduce this PHP warning:

Put this in a.php:

<?php
$skipper = "abcd";
foreach ($skipper as $item){       //warning happens on this line.
    print "ok";
}

?>

Prints:

eric@dev ~ $ php a.php
PHP Warning:  Invalid argument supplied for foreach() in 
/var/www/sandbox/eric/code/php/run06/a.php on line 3
PHP Stack trace:

The warning means exactly what it says. You passed a parameter into the foreach structure which could not be evaluated in the foreach. Before the foreach loop, ensure that the first parameter is a structure that the foreach can handle.

Upvotes: 0

ceejayoz
ceejayoz

Reputation: 180024

$front_values is not an array if you're getting that. Check its contents, and if it's legitimately not an array at times (for example, if get_post_custom_values returns null when there aren't any results), account for it by wrapping the foreach in an if(is_array($front_values)) { conditional.

Upvotes: 1

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