The if ($link) tests if the field was returned.
<?php
$link = get_post_meta($post->ID, 'link_url', true);
$text = get_post_meta($post->ID, 'link_text', true);
if ($link){
echo 'Credit: <a href="'.$link .'">'.$text.'</a>';
}
?>
Could also do
if (get_post_meta($post->ID, 'link_url', true)) {
There’s already a function for doing that.
http://codex.ww.wp.xz.cn/Function_Reference/get_post_meta
False on fail
Value on success
A check to see if the field if present could look like.
$my_meta = get_post_meta( $post->ID , 'fieldname' , true );
if( $my_meta ) {
// It's true
}
else {
// It's false
}
I really should refresh the page before hitting submit.
Thanks so much for the responses!
I’m sorry, but I’m pretty dense about this stuff!
I’ve changed my function to:
function is_newsletter() {
$news_meta = get_post_meta( $post->ID , ‘newsletter’ , true );
if ($news_meta) {
return true;
} else {
return false;
};
};
Am I’m on the right track? The results look like they’re always coming up ‘false’. Thoughts?
Thank you again so much for your help!
-Mary
What about your global $post;
Thanks again for the reply.
After your reply, I did searches on ‘global $post’ and it looks like it’s needed to look at the info about the current page. So, I changed my function to :
function is_newsletter() {
global $post;
$news_meta = get_post_meta( $post->ID , 'newsletter' , true );
if ($news_meta) {
return true;
} else {
return false;
};
};
Unfortunately, it looks like the function is still always outputting a ‘false’.
I then changed it to:
function is_newsletter() {
global $post;
$news_meta = get_post_meta( $post->ID , 'newsletter' , true );
if ($news_meta = 'yes') {
return true;
} else {
return false;
};
};
and now I’m always getting a true!
I’m clearly missing some basic understanding here. Can anyone help?
Thanks again!
-Mary
Using the WordPress Default theme, in functions.php I put:
function is_newsletter($custom_field) {
global $post;
if (get_post_meta( $post->ID , $custom_field , true )) {
return true;
} else {
return false;
}
}
And in the loop, in the index.php for the Default theme I put:
<?php
the_meta();
if (is_newsletter('news letter')) {
echo 'this is news letter';
}else{
echo 'this is not a news letter';
}
?>
[edit – fixed]
MichaelH,
It’s finally working! Thank you so much. I am sincerely grateful for yours and everyone else’s help.
Thank you again!
-Mary
Semi-colon after the closing curly bracket … is that valid?
};
Sorry, i couldn’t help myself… 🙂
Nope—so I fixed. Couldn’t help myself either. Thanks for being yourself 😉
