check string for multiple values

[adibranch]

Hi all, i've got a string ($currentcatid) which contains one number which changes dependant on which page the visitor is on.. ie  it may be perhaps "23" or "17" .

 

I need to do a check against this string to see if it contains any of the following values .. 31,32, 1, 24 . I cant remember how i did it before but i think it was with pipes..

 

something along the lines of

if ($currentcatid =="31"||"32"||"1"||"24") { action }

 

can anyone help?

 

Thanks

[flolam]

what is the problem with the code you have? if you want to check whether the string contains this number, you will have to use a function like strstr (http://php.net/manual/en/function.strstr.php), because currently you are checking whether the variable has exactly this value

[adibranch]

the problem with the code i posted was that it only checks for the first value eg in this case "31" .

 

What i'm basically asking it to do ..

Is the value in $currentcat equal to any of these values : 31, 32,1, or 24 ? If so, please do {action}

[flolam]

this does work on my machine:

$a = "31";

if ($a == "29" || "30" || "31" || "32") {
echo "true";
}

//output: true

 

--Edit--

I just noticed that this will always return true, no matter what value $a has

[flolam]

of course, this will always work:

$a = "31";

if ($a == "29" || $a == "30" || $a == "31" || $a == "32") {
echo "true";
}

 

--edit--

or:

$a = "31";
$b = array("31", "32");

if (in_array($a, $b)) {
echo "true";
}

[adibranch]

thanks i had already used the top code and sorted it after reading somewhere on here, but the bottom one tidied it up nicely.