Split String and Number in PHP

Best way is by using a regular expression.

Example:

PHP Code:

$str = 'Johnson 54321';

if ( preg_match ( '/\D+([0-9]+)/', $str, $matches ) )
{
    print_r($matches);
} 


The pattern \D+([0-9]+) says: check for 1 or more non-digit characters first, followed by 1 or more digit characters.
The part that is between braces, will be returned in the $mathes array.

The result will be in $matches[1], which will be equal to '54321'.