## 例

`

     mixed str_ireplace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )

`

## 説明

This function returns a string or an array with all occurrences of search in subject (ignoring case) replaced with the given replace value. If you don't need fancy replacing rules, you should generally use this function instead of preg_replace() with the i modifier.

## 戻り値

Returns a string or an array of replacements.