John's hacks

I decided I might start documenting some hacks I've come across in my travels which I think are neat.

Removing last comma

// 2020-04-14 jj5 - it's important to handle this case...
//
if ( count( $list ) === 0 ) { return 'list missing'; }

$result = 'my list: ';

foreach ( $list as $item ) {

  $result .= "$item, ";

}

// 2020-04-14 jj5 - the neat hack is dropping the last two characters here...
//
return substr( $result, 0, -2 ) . '.';

Although the whole thing can often be simplified as something like this (you might also need to check for an empty list):

return 'my list: ' . implode( ', ', $list ) . '.';