Can I test for more than one value w/ "IF" or must test individually w/ "SWITCH"

[OriginalMacBabe]

Is it possible to test for more than one value in an "if" statement or must each desired value be checked individually with something like a "switch" or "if-else"?

 

For example, if I'm checking $_SERVER["$HTTP_USER_AGENT"] and I am only interested in selecting for Safari or Opera and all the rest are "else" ...?

 

BONUS question (for me ...)

 

And, can I get a clear answer on the best checker for this: strpos(), strstr(), substr(), or match_preg()??

 

Thank you

 

OMB

[chigley]

<?php

if($variable == "value1" || $variable == "value2") {
echo "The variable is either value1 or value2!";
} else {
echo "The variable is NOT equal to value1 or value2.";
}

?>

[taith]

a) out of the 4... strpos is the fastest  but the others will work also :-)

 

and yes...

 

if(($browser=='opera')||($browser=='safari')){

}

[per1os]

I use eregi for that type of stuff.

 

www.php.net/eregi  strstr can be deceiving in that if what you are looking for starts as the very first part of the string it returns 0, which coincidently also is considered to be false. eregi does not do that and it is case insensitive.

[OriginalMacBabe]

Thank you for the fast replies. 

 

<?php

if((stripos($_SERVER[“$HTTP_USER_AGENT”], “opera”)) || (stripos($_SERVER[“$HTTP_USER_AGENT”], “safari”))) {
include("operasafari.css");
} else {
  include("otherbrowsers.css");
}

?>

[taith]

i should mention that including a css file wont do anything ;-) you need your html to link to it ;-)

[chigley]

... not if the CSS file has something like this in it:

 

<style type="text/css">

background: #fff;

</style>

[OriginalMacBabe]

Caveats duly noted ~ keep the included css as html inline styling. 

 

This makes perfect sense since I am only planning on changing 2 lines of css that are browser dependent. 

 

In fact, if this is the case, I only need to include ONE new css stylesheets as a result of the "IF" that holds the necessary browser dependent modifications of the otherwise already loaded stylesheet. 

 

So, I think the final version of the code will read:

<?php

if((stripos($_SERVER[“$HTTP_USER_AGENT”], “opera”)) || (stripos($_SERVER[“$HTTP_USER_AGENT”], “safari”))) {
include("operasafari.css");
} else {
}

?>

Thanx

 

[taith]

if((stripos($_SERVER[“$HTTP_USER_AGENT”], “opera”)) || (stripos($_SERVER[“$HTTP_USER_AGENT”], “safari”))){

echo '<link rel="stylesheet" type="text/css" href="operasafari.css" />';

}

[OriginalMacBabe]

Is there some reason I can't simply include("inline-styling.css") to override the original stylesheet if the browsers are Opera or Safari?