preg_match help

[james909]

How to a check if a php variable value is one of the following characters: A to J, or ,k to t, (ie.: A B C D E F G H I J k l m n o p q r s t)

 

I tried:

if (preg_match[A-Jk-t], $checkChar) 
{   
// do this
}

 

But it did not work 

[Jacques1]

Whatever this is supposed to be, it's not PHP code.

 

Where are the parentheses for the function call? Where are the quotes for the string? Where are the delimiters for the regex?

[cyberRobot]

Instead of using a regular expression, you could just create an array of values (A-J and k-t). You can then see if $checkChar is in the array with in_array(). More information about in_array() can be found here:

http://php.net/manual/en/function.in-array.php

 

Also note that you could create the array using a combination of range() and array_merge().

[Jacques1]

What's the benefit? It's literally twice as much code and arguably less readable.

[cyberRobot]

What's the benefit? It's literally twice as much code and arguably less readable.

 

I guess it depends on what the code is used for. When I've had code like this in the past, the array of characters is used in other parts of the script. However, you're probably right about regular expressions fitting better in this case.

[cyberRobot]

@james909 - If you're looking for guidance on using preg_match(), the PHP manual has some examples that might help:

http://php.net/manual/en/function.preg-match.php