Because the LSPHP package provided by LiteSpeedTech is under the Ubuntu distribution, OPCache support is not provided for PHP5.3 ~ 5.6. Here is the source package.

PHP 5.3 and PHP 5.4 are from the zendopcache-7.0.5 package provided by PECL. PHP 5.5 comes from the ext directory in the php-5.5.38 source package. PHP 5.6 comes from the ext directory in the php-5.6.40 source package.

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