This function compiles a PHP script and adds it to the opcode cache without executing it. This can be used to prime the cache after a Web server restart by pre-caching files that will be included in later requests.
The path to the PHP script to be compiled.
Returns true if filename was compiled successfully or false on failure.
Exceptions and Errors
If filename cannot be loaded or compiled, an error of level E_WARNING is generated. You may use @ to suppress this warning.