apache_getenv Get an Apache subprocess_env variable &reftitle.description; stringapache_getenv stringvariable boolwalk_to_topfalse Retrieve an Apache environment variable specified by variable. This function requires Apache 2 otherwise it's undefined. &reftitle.parameters; variable The Apache environment variable walk_to_top Whether to get the top-level variable available to all Apache layers. &reftitle.returnvalues; The value of the Apache environment variable on success, or &false; on failure &reftitle.examples; The example above shows how to retrieve the value of the Apache environment variable SERVER_ADDR. ]]> &example.outputs.similar; &reftitle.seealso; apache_setenv getenv Superglobals