mb_ereg_replace_callback Perform a regular expression search and replace with multibyte support using a callback &reftitle.description; stringmb_ereg_replace_callback stringpattern callablecallback stringstring stringoption"msr" Scans string for matches to pattern, then replaces the matched text with the output of callback function. The behavior of this function is almost identical to mb_ereg_replace, except for the fact that instead of replacement parameter, one should specify a callback. &reftitle.parameters; pattern The regular expression pattern. Multibyte characters may be used in pattern. callback A callback that will be called and passed an array of matched elements in the subject string. The callback should return the replacement string. You'll often need the callback function for a mb_ereg_replace_callback in just one place. In this case you can use an anonymous function to declare the callback within the call to mb_ereg_replace_callback. By doing it this way you have all information for the call in one place and do not clutter the function namespace with a callback function's name not used anywhere else. string The string being checked. option The search option. See mb_regex_set_options for explanation. &reftitle.returnvalues; The resultant string on success, or &false; on error. &reftitle.notes; ¬e.mbstring.encoding.internal; &reftitle.examples; ]]> &example.outputs; ]]> &reftitle.seealso; mb_regex_encoding mb_ereg_replace Anonymous functions &seealso.callback;