PHP - if statements bloated - php

Question

The user gets several options which adds a different class into something that is read into PHP -
The below works, but it seems very inefficient and uses a lot of code. Is there a way I can cut this down?
<?php
if(get_sub_field('status') == "Upcoming"){
echo '<li class="upcoming">';
}
if(get_sub_field('status') == "Next"){
echo '<li class="next">';
}
if(get_sub_field('status') == "See what happened"){
echo '<li class="happened">';
}
?>

Answer 1

You could make a table that holds the available values for which you want. This way eliminates all of the if statements. Keep in mind thought that this is functionally equivalent to your code above.
$opt_vals = array(
"Upcoming",
"Next",
"See what happened"
);
$val_to_search = get_sub_field("status");
if(($key = array_search($val_to_search, $opt_vals)) !== FALSE) {
echo '<li class="' . strtolower($val_to_search) . '">';
}
Since array_search returns the key with the corresponding value, $key would hold the key, but as #Timur emphasized, a value at corresponding index 0, would evaluate to FALSE, 0, so in order to really check if it has the value we have to use the strict !== operator because 0 == NULL would evaluate to true.

Answer 2

you can do it with if...else if like this.
<?php
$status = get_sub_field('status');
if( $status == 'upcoming')
$class = 'upcoming';
else if( $status == 'Next' )
$class = 'next';
else if( $status == 'See what happened')
$class = 'happened';
?>
<li class="<?php echo $class; ?>"></li>

Answer 3

The only way you could change it is this:
echo '<li class="' . get_sub_field('status') . '">';
Otherwise there is no way around this! You have to use if and elseif or you make a switch statement
When you sill want to look if the value is valid you can make a array like a whitelist:
$valid = array(
"Upcoming",
"Next",
"See what happened"
);
And then you can check it like this:
if($value = array_search(get_sub_field("status"), $valid))
echo '<li class="' . strtolower($value) . '">';
else
echo '<li class="default">'; //if something fails