Deprecated extensions implemented in PHP.
This is a drop-in replacement for the ereg extension which may be removed as a core extension in the next major version of php.
Besides implementing all the functions of the original extension, it provides one extra helper function to convert regular expressions into PCRE:
string ereg_to_pcre(string $pattern [, $modifiers = ''])
Known issues:
- No support for collating sequences
- No support for equivalence classes
- May not work for expressions that match regular expressions