/ Published in: PHP
Taken from stackoverflow answer by user Jon
To test
$foo = array('age' => 5, 'name' => 'john');
echo vsprintf_named("%(name)s is %(age)02d", $foo);
To test
$foo = array('age' => 5, 'name' => 'john');
echo vsprintf_named("%(name)s is %(age)02d", $foo);
URL: http://stackoverflow.com/questions/7435233/name-php-specifiers-in-printf-strings