Popisstring xdiff_string_diff ( string str1, string str2 [, int context [, bool minimal]] )
Makes a unified diff of two strings.
Indicates how many lines of context you want to include in the diff result.
Set this parameter to TRUE if you want to minimalize the size of the diff (can take a long time).
Poznámka: This function doesn't work well with binary strings. To make diff of binary strings use xdiff_string_diff_binary().