PHP strripos() Function

The strripos() function finds the position of the last occurrence of a string inside another string.

int strripos ( string $haystack , string $needle [, int $offset = 0 ] )

Find the numeric position of the last occurrence of needle in the haystack string.Unlike the strrpos(), strripos() is case-insensitive.

Related functions:

  • stripos() - Finds the position of the first occurrence of a string inside another string (case-insensitive)
  • strpos() - Finds the position of the first occurrence of a string inside another string (case-sensitive)
  • strrpos() - Finds the position of the last occurrence of a string inside another string (case-sensitive)

Example -

The above example will output:

Congratulations!

We found the last (aB) in (ababcd) at position (2)

ParameterDescription
haystackThe string to search in.
needleIf needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
offsetIf specified, search will start this number of characters counted from the beginning of the string. If the value is negative, search will instead start from that many characters from the end of the string, searching backwards.

Returns the position where the needle exists relative to the beginnning of the haystack string (independent of search direction or offset). Also note that string positions start at 0, and not 1.Returns FALSE if the needle was not found.