When you run wordpress under xamm,
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 334230 bytes) in D:\xampp\htdocs\test.php on line814.
 1. Open \xampp\apache\bin\php.ini .Do not go to the directory of phpt to find php5.ini .
2. Search”memory” and get the following:
;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;
max_execution_time = 60Â Â Â Â ; Maximum execution time of each script, in seconds
max_input_time = 60Â Â Â ; Maximum amount of time each script may spend parsing request data
memory_limit = 32MÂ Â Â Â Â ; Maximum amount of memory a script may consume (16MB)
3. Modify the value of “memory_limit =” ，usuall change it to 64M.
4. Reboot Apache.