How to Efficiently Compare Multiple Values in PHP Without Excessive Code?

Comparing Multiple Values in PHP without Verbosity

In PHP, comparing numerous values can lead to redundant code, as demonstrated in the following example:

if($var == 3 || $var == 4 || $var == 5 || $var =='string' || $var == '2010-05-16') {
   // execute code here
}

To simplify this code, it is possible to create an array containing the values and then use the in_array() function to check if the variable matches any element within the array:

$checkVars = array(3, 4, 5, "string", "2010-05-16");

if(in_array($var, $checkVars)){
    // Value is found.
}

This approach eliminates the need to explicitly mention the variable multiple times, making the code more concise and readable.

For further information on the in_array() function, refer to the PHP manual: http://uk.php.net/manual/en/function.in-array.php

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