今天登入 wordpress ，發現無法進入後台，出現以下錯誤
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 72 bytes) in /home/leona/public_html/wp-includes/taxonomy.php on line 1938

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 78 bytes) in /home/a8484410/public_html/learning/wp-includes/pomo/translations.php on line 76

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 2048 bytes) in /home/a8484410/public_html/learning/wp-includes/class.wp-dependencies.php on line 130

弄了大半天，整個網站重灌了數次，最後才發現是主機記憶體設定問題。

在 wp-config.php 加上下列一行即可：
define('WP_MEMORY_LIMIT', '256M');