Question

I was testing the strrchr function and was baffled by its behaviors. It is supposed to return the substring from the last occurrence of the matching pattern. For instance,

$test = '[e-mail]';
echo strrchr($test,'@') ;

this returns the substring from the “@”, that is @hotmail.com, but if I search for this “hot”

$test = '[e-mail]';
echo strrchr($test,'example') ;

instead of tmail.com (I expected), how come it returns hotmail.com, and if I search for other patterns, the results are strange too. Thank you

Answer 1

Only first character is used for searching, based on php documentation:

If needle contains more than one character, only the first is used.
This behavior is different from that of strstr().

see: http://php.net/manual/en/function.strrchr.php