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PHP

Pontus Bolmér
Pontus Bolmér
12,471 Points
Posted by Pontus Bolmér
Pontus Bolmér
12,471 Points

Why do you get the key from a foreach loop

It might be a stupid question! But if i have a foreach loop 

foreach($list as $key => $item) {
    echo $key . " " .$item["title"] . "</br>";
}

Why do you need to retrive the key value? When you get all u want by simply just writing item[title]

I guess my question is, when do you use the key value?

1 Answer

Jeffrey van Rossum
Jeffrey van Rossum
2,994 Points
Jeffrey van Rossum
Jeffrey van Rossum
2,994 Points

Maybe, like in your example, you want to echo the key value to make a list.

Another thing you could do is use the key to alter the output. For example, let's say we want the second iteration in the array to have a bold title. Important to note is that in this case example your array keys must be ascending and numeric:

<?php
foreach( $list as $key => $item ) {
    if ( $key == 1 ) {
        echo $key . ' <strong>'.$item['title'].'</strong><br>';
    } else {
       echo $key . ' ' .$item['title'] . '<br>";
    }
}