Laravel migrate 删除表 字段 索引 migration 写法

删除表

Schema::dropIfExists('users');

删除字段

Schema::table('users', function (Blueprint $table) {
    $table->dropColumn(['votes', 'avatar', 'location']);
});

删除索引

Schema::table('geo', function (Blueprint $table) {
    $table->dropIndex(['state']); // Drops index 'geo_state_index'
});