Note that the
needle may be a string of one or
needle is not found,
stripos() will return boolean FALSE.
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE, such as 0 or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.
Example 1. stripos() examples
needle is not a string, it is converted
to an integer and applied as the ordinal value of a character.
offset parameter allows you
to specify which character in
start searching. The position returned is still relative to the
Note: This function is binary-safe.