Comparison of 1 variable to multiple values

[phpdolan]

When writing a regex, it is possible to use the pipe ( | ) to signify 'choices'. Evidentally that doesn't work in a comparison.

So if I want to check to see if:

 

$day_of_month equals Jan 1 or Mar 1 or May 1, etc, is there a shorthand? Or do I have to write each like this:

 

if ( $day_of_month == 'Jan 1' OR $day_of_month == 'Mar 1' OR $day_of_month == 'May 1' )

 

I know my options are to do that OR put the values in an array OR to set up a CASE expression, but my question is about a cleaner expression with something that resembles the pipe in a regex?

 

Thanks for all comments,

David

[rhodesa]

i usually do:

if(in_array($day_of_month,array('Jan 1','Mar 1','May 1')))

[flyhoney]

Technically you can still use the pipe

 

<?php
if ( $day_of_month == 'Jan 1' || $day_of_month == 'Mar 1' || $day_of_month == 'May 1' )
?>

[rhodesa]

Technically you can still use the pipe

 

<?php
if ( $day_of_month == 'Jan 1' || $day_of_month == 'Mar 1' || $day_of_month == 'May 1' )
?>

 

the OP meant a regex pipe:

if(preg_match('/^(Jan 1|Mar 1|May 1)$/',$day_of_month))

[flyhoney]

I know I was making a joke.  A very bad joke obviously.

[rhodesa]

I know I was making a joke.  A very bad joke obviously.

 

oh...in that case... 

[Maq]

I know I was making a joke.  A very bad joke obviously.

 

Booooooooo  :-\

[phpdolan]

Many thanks Aaron.

 

i usually do:

if(in_array($day_of_month,array('Jan 1','Mar 1','May 1')))

 

I will settle on that as the solution.

 

My comment on the joke is Yeah!!! Thanks for the reply. I didn't get the joke, but did get that the double pipe will shorten my typing by ONE character each time.

 

Yeah!!

 

David