Php 拉威尔口若悬河，没有得到结果
我有一个laravel项目，我看不出哪里有bug 我有一个产品表，其中有一个“低库存警告”整型字段和一个“单位库存”整型字段 我想得到的产品的单位库存量小于低库存量\u警告量，因此我Php 拉威尔口若悬河，没有得到结果,php,laravel,eloquent,Php,Laravel,Eloquent,我有一个laravel项目，我看不出哪里有bug 我有一个产品表，其中有一个“低库存警告”整型字段和一个“单位库存”整型字段 我想得到的产品的单位库存量小于低库存量\u警告量，因此我 $stock_warning = Product::whereRaw('units_stock <= low_stock_warning') ->select('id') ->get(); 编辑2: 这是数据库结构： -------------- DEVELOPMENT ENVI
$stock_warning = Product::whereRaw('units_stock <= low_stock_warning')
->select('id')
->get();
--------------
DEVELOPMENT ENVIRONMENT
--------------
+-----------------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------------+------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| productdescriptioneng | text | YES | | NULL | |
| units_stock | int(11) | YES | | NULL | |
| low_stock_warning | int(11) | YES | | NULL | |
+-----------------------+------------------+------+-----+---------+----------------+
--------------
PRODUCTION ENVIRONMENT
--------------
+-----------------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------------+------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| productdescriptioneng | text | YES | | NULL | |
| units_stock | int(11) | YES | | NULL | |
| low_stock_warning | int(11) | YES | | NULL | |
+-----------------------+------------------+------+-----+---------+----------------+
Product:：whereColumn（'units\u stock'，'验证数据库中的产品是否未被软删除（deleted\u at不为空）；
如果它是软删除的，但您需要它们，请使用以下命令：
Product::whereColumn('units_stock', '<=', 'low_stock_warning')->withTrashed()->pluck('id');
Product:：whereColumn（'units_stock'），您可以使用whereColumn和或whereColumn来实现
Product::whereColumn('units_stock', '<', 'low_stock_warning')
orWhereColumn('units_stock', '=', 'low_stock_warning')
->pluck('id');
Product:：whereColumn（'units\u stock'，'谢谢你的回复，但它不起作用：（（我没有投任何反对票）@Klian你不工作到底是什么意思？你有没有发现错误或什么？另外，请显示表中的真实数据。我曾试图添加答案，但@AlexeyMezenin先添加了答案。我之前在比较数据库表中的两列时遇到了同样的问题。应该可以工作：我添加了一个屏幕截图和laravelresult@Klian请出示t他从表和精确列类型中获取真实数据。刚刚用整数测试了此代码，效果很好。请向我们展示产品的结构和数据表
--------------
DEVELOPMENT ENVIRONMENT
--------------
+-----------------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------------+------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| productdescriptioneng | text | YES | | NULL | |
| units_stock | int(11) | YES | | NULL | |
| low_stock_warning | int(11) | YES | | NULL | |
+-----------------------+------------------+------+-----+---------+----------------+
--------------
PRODUCTION ENVIRONMENT
--------------
+-----------------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------------+------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| productdescriptioneng | text | YES | | NULL | |
| units_stock | int(11) | YES | | NULL | |
| low_stock_warning | int(11) | YES | | NULL | |
+-----------------------+------------------+------+-----+---------+----------------+
SHOW ENGINES;
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| CSV | YES | CSV storage engine | NO | NO | NO |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO |
| MyISAM | YES | MyISAM storage engine | NO | NO | NO |
| PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO |
| ARCHIVE | YES | Archive storage engine | NO | NO | NO |
| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
SHOW ENGINES;
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| MyISAM | YES | MyISAM storage engine | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| CSV | YES | CSV storage engine | NO | NO | NO |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO |
| PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO |
| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| ARCHIVE | YES | Archive storage engine | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
Product::whereColumn('units_stock', '<=', 'low_stock_warning')->pluck('id')
Product::whereColumn('units_stock', '<=', 'low_stock_warning')->withTrashed()->pluck('id');
Product::whereColumn('units_stock', '<', 'low_stock_warning')
orWhereColumn('units_stock', '=', 'low_stock_warning')
->pluck('id');