PHP Inline Conditional Reference

There are a number of different inline conditionals I use when working with PHP (i.e. ternary conditionals and the null coalescing operator). As a reminder of how some of these common inline conditionals work, I put together this table for reference.

$value	$value ? $value : 13 $value ?: 13	isset( $value ) ? $value : 13 $value ?? 13	! empty( $value ) ? $value : 13
`0` (zero)	`13`	`0`	`13`
`false`	`13`	`false`	`13`
unassigned	`13` throws “undefined variable” notice	`13`	`13`
`null`	`13`	`13`	`13`
`'sal'`	`'sal'`	`'sal'`	`'sal'`
`''`	`13`	`''`	`13`

Sal Ferrarello (@salcode)

Sal is a PHP developer with a focus on the WordPress platform. He is a conference speaker with a background including Piano Player, Radio DJ, Magician/Juggler, Beach Photographer, and High School Math Teacher. Sal can be found professionally at WebDevStudios, where he works as a senior backend engineer.

Sal Ferrarello (@salcode)

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