mb_strripos

Finds position of last occurrence of a string within another, case insensitive.

mb_strripos Function synopsis

mb_strripos(
    string $haystack,
    string $needle,
    int $offset = 0,
    ?string $encoding = null
  ): int|false

Parameters

$haystack

Typestring

The string from which to get the position of the last occurrence of $needle.

$needle

Typestring

The string to find in $haystack.

$offset

OptionalTypeintDefault value0

May be specified to begin searching an arbitrary number of characters into the $haystack. Negative values will stop searching at an arbitrary point prior to the end of the $haystack.

$encoding

OptionalType?stringDefault valuenull

Return value

Typeint|false

Return the numeric position of the last occurrence of $needle in the $haystack string, or false if $needle is not found.