[PHP] [Array] 如何刪除索引陣列中的值

如何刪除索引陣列中的值。

<?php $error_descriptions[1] = "A fatal error has occured"; $error_descriptions[2] = "PHP issued a warning"; $error_descriptions[8] = "This is just an informal notice"; unset($error_descriptions[2]);   // 刪除 $error_descriptions[2] 資料 print_r($error_descriptions); ?>