Conditional statement problem (expects parameter)

• Cheyens

• August 12, 2013 at 7:18 pm

Hi,

I am using Conditional statement (Checkbox rvalue is an array) function to get two outputs. But if “None” checkbox is ticket I get this error:

“Warning: in_array() expects parameter 2 to be array, string given in…”

How can I do an “if empty” check or otherwise write it properly?

This is my code:

<?php if( in_array( 'Materialet er tilgængeligt til download', get_field('materiale') ) ) {echo '<a href="' . get_field('download') . '" target="_blank" class="readmore">Download PDF →</a>';}?>

<?php if( in_array( 'Materialet er tilgængeligt som eksternt link', get_field('materiale') ) ) {echo '<a href="' . get_field('link') . '" target="_blank" class="readmore" >Eksternt link →</a>';}?>

Thanks

• Elliot

• August 13, 2013 at 12:56 pm

Hi @Cheyens
I would first test the value of your get_field to see why the error is showing in the first place.

<?php 

echo '<pre>';
	var_dump(get_field('materiale'));
echo '</pre>';
die;
 ?>

What do you get?

• Cheyens

• August 13, 2013 at 6:40 pm

Hi,

I get this:

string(0) ""

• Elliot

• August 14, 2013 at 12:06 pm

Looks like there is no value saved for the field.

This means your in_array function will fail due to the wrong variable type.

Perhaps you need to also compare the value like so:

<?php 

if( get_field('materiale') )
{

	if( in_array( 'Materialet er tilgængeligt til download', get_field('materiale') ) )
	{
		echo '<a href="' . get_field('download') . '" target="_blank" class="readmore">Download PDF →</a>';
	}

}

?>

• Cheyens

• August 14, 2013 at 7:35 pm

Hi,

Thanks! That solved my problem 🙂