Problem with get_post_meta

Question

I am using this code to retrieve post meta:

<?php if( get_post_meta($post->ID,'a',true) == ''){
                        echo '<img src="' . get_bloginfo( 'template_url' ) . '/img/img22.jpg" ></img>';
                    }else{
                        echo get_post_meta($post->ID,'a',true); 
                    } ?>

My first block of if statement is always executing no matter whether the mete box text field is empty or not and else block is not executing in any case. I want to know if there is any flaw in this code or

echo get_post_meta($post->ID,'a',true)

is not a valid code. Your help will be highly appreciated.

Answer 1

I was having some issues like yours. It was because it was on a page template with a query above it. All I had to do was reset the query.

http://codex.wordpress.org/Function_Reference/wp_reset_query

Hope this helps you.

Answer 2

try this.Hope this will work fine

$key_1_value = get_post_meta($post->ID, 'a', true);
    // check if the custum field has a value
    if($key_1_value != '') {
      echo $key_1_value;
    } else{
      echo '<img src="' . get_bloginfo( 'template_url' ) . '/img/img22.jpg";
    }

Answer 3

Use PHP empty() function as the condition to check whether meta value is null or not:

<?php
    $my_val = get_post_meta($post->ID,'a',true);
    if( empty( $my_val ) ) {
        echo '<img src="' . get_bloginfo( 'template_url' ) . '/img/img22.jpg" ></img>';
    } else {
        echo $my_val; 
    }
?>

Answer 4

Try This

<?php if( ( $usermeta  = get_post_meta($post->ID,'a',true)) && !empty($usermeta) ){
                        echo $usermeta; 

                    }else{
                        echo '<img src="' . get_bloginfo( 'template_url' ) . '/img/img22.jpg" ></img>';
                    } ?>