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runkit_import
Process a PHP file importing function and class definitions, overwriting where appropriate
(PECL runkit:0.7-0.9)
bool runkit_import ( string filename [, int flags] )
Similar to include() however any code residing outside of a function or class is simply ignored. Additionally, depending on the value of flags, any functions or classes which already exist in the currently running environment will be automatically overwritten by their new definitions.