is_scalar
Be aware that this function could result into unwanted results if you check
single chars in an array.
For instance:
You have a simple string
and want to repeat this string evertime it ends.
for ($i=0; $i <
strlen($string);$i++){
if(!is_string($key[$x]))
$x = 0;
echo $key[$x];
$x++;
}
This will print you
out the key, but won't iterate it since $x won't be reset. is_string
function will give out true at element in that string, even if it doesn't
exist. for instance is_string $key[1000] while your string is just 10chars
long.
However this doesn't matter just use $key[$x] == ''
instead.
Of course you won't use this to iterate a string, but you
might come across something where this get useful, for instance for a
en/decrypt engine.
