检查字符串是否等于多个给定字符串之一

Question

I want to check whether string is one of the given strings. It would look something like this.

$string 'test';


// if given string is 'test' function will return false.
function checkIfIsSubstring($string)
{
if (strcmp($string, 'test2') )
   return true;
if (strcmp($string, 'test3') )
   return true;
if (strcmp($string, 'test4') )
   return true;
return false;
} 

is there php function what would do same thing, without me creating a new function?

Answer 1

You can put the values into an array and then use in_array() :

$array = array('test1', 'test2', 'test3');
$string = 'test1';    

if(in_array($string, $array)) {
    // do something
}