Function Reference Variable and Type Related Extensions Filter Installing/Configuring Installation Requirements Runtime Configuration Installation The filter extension is enabled by default as of PHP 5.2.0. Before this time an experimental PECL extension was used, however, the PECL version is no longer recommended or updated.
Installation The filter extension is enabled by default as of PHP 5.2.0. Before this time an experimental PECL extension was used, however, the PECL version is no longer recommended or updated.