Using multiple values in switch paramater NOT case

Question

My question is the opposite of this Using two values for one switch case statement

I'd like to use multiple values in the switch part of the statement, not the case part which I already know how to do.

<?php
$three = json_decode( $ex[ 'three-images' ] );
$i = 0;
$imgs = $trans = $class = $parallaxDir = [];
foreach ( $three as $img ) {
    $imgs[ $i ] = $img->Image;
    $parallax[ $i ] = $img->Transition;
    $class[ $i ] = $img->Class;
    //for ($ii = 0; $ii < 3; $ii++) {
    switch ( $class[ $i ] ) {
        case 'middle':
        case 'onright':
            $parallaxDir[ $i ] = '0';
            break;
        case 'top':
        case 'onleft':
            $parallaxDir[ $i ] = '1';
            break;
        default:
            $parallaxDir[ $i ] = '9';
            break;
    };
    //}     
    $i++;
}
?>
<div class="side image <?php echo $class[1]; ?>" <?php if(!empty($parallax[1])) { echo 'data-para="' . $parallax[1] . '"'; } ?> <?php if(!empty($parallaxMob)) { echo 'data-para-mobile="' . $parallaxMob . '"'; } ?> <?php if(!empty($parallaxDir[1])) { echo 'data-para-dir="' . $parallaxDir[1] . '"'; } ?>> 
    <img class="parallax" src="<?php echo $imgs[1]; ?>" alt="<?php echo explode('[',trim($item->title)[0]); ?> image"/> 
</div>

This is the full code, seems it was working fine as I had it but for some reason when trying to implement it later down the line the array values were returning as empty even though they weren't.

So once I took the [1] off the parallaxDir if(!empty) check it started working

Can you explain how you would like it to operate? You have 2 values in this case, how does this like to the case statements you have? — Nigel Ren
– Nigel Ren, Commented Feb 15, 2023 at 14:12
The CMS gives the class a text value, the text value will be uniquie per image and is combined with a lot of other info in a decoded JSON string so each one has to be pulled out via the Array, then depending on what text string is returned it the passed the value to the PHP variable which is then used to combine with a data-attribute, so the above is a simplifed version — GibsonFX
– GibsonFX, Commented Feb 15, 2023 at 14:14
So how does that relate to the code you show? How does the combination of $class[0]||$class[1] relate to the case statements? — Nigel Ren
– Nigel Ren, Commented Feb 15, 2023 at 14:16
I don't get what you're asking, I'm asking if it's possible to use multiple inputs in the switch part of the statement, why do you need to know anything else? — GibsonFX
– GibsonFX, Commented Feb 15, 2023 at 14:18
switch ($class[0]) { case 'middle': case 'onright': $parallaxDir = '0'; break; case 'top': case 'onleft': $parallaxDir = '1'; break; }; — GibsonFX
– GibsonFX, Commented Feb 15, 2023 at 14:19

E-g · Accepted Answer · 2023-02-15 14:21:40Z

1

No, not possible.

Though you could do something like this:

foreach([$class[0], $class[1]] as $value) {
      switch($value) {
           // case...
      }
}

But you are probably better off using if statements.

answered Feb 15, 2023 at 14:21

E-g

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5 Comments

GibsonFX Over a year ago

Doesn't seem to work

E-g Over a year ago

Use break 2; to also break the loop instead of simply break;

GibsonFX Over a year ago

It's returning a value now but only the last value in the sequence

E-g Over a year ago

Show me your code

GibsonFX Over a year ago

Posted the full code but it's working now, seems that there was some issue with the if(!empty) check on the Array value was returning as false even though it did contain a value.

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