Silly problem with "strrchr"

[halex]

I have a string with comma at the end and I want to remove that comma simbol, but I can't remove it everytime. First, I need to check if there is comma simbol at the end.

Why my method is not working?
My string has comma at the end but this is printing "false"?

if (strrchr($myString,",") == ",")
	print "true";
else
	print "false";

[halex]

Looks like it is problem to me...
Because this is working...

if (strrchr("I am testing this,",",") == ",")
	print "true";
else
	print "false";

Any better solution to recognize and (if any) strip comma that is at the end of string?

[intenz]

Well...

$FOO = 'haha';
echo $foo;
# This doesn't output anything

$foo = 'haha';
echo $foo;
# This outputs: haha

Try...

$myString = 'this is a foobar string,';
echo strrchr($myString,',') == ',' ? 'true' : 'false';

Maybe you assigned $mystring and tried to check $myString