$sql = “SELECT * FROM table_name WHERE condition1 AND condition2”; “` 在这个例子中,你可以将condition1和condition2替换为具体的查询条件。 2. 使用OR操作符: “`php $sql = “SELECT * FROM table_name WHERE condition1 OR condition2”; “` 在这个例子中,你可以将condition1和condition2替换为...
$query = “SELECT * FROM table_name WHERE condition1 AND condition2”; “` “`php $query = “SELECT * FROM table_name WHERE condition1 OR condition2”; “` 在上述示例中,condition1 和 condition2 可以是表中的字段和相应的值,例如 “age > 18” 或“name = ‘John'”。 2. 使用 IN 运...
...预加载多个关系 $books = App\Book::with('author', 'publisher')->get(); 嵌套的预加载 $books = App\Book::with('author.contacts...有时候,在上级模型已经检索出来之后,可能会需要预加载关联数据,可以使用load方法 $books = App\Book::all(); if ($someCondition) { $books...
if(!empty($keywords)){$condition .= " AND title LIKE '%".$keywords."%' OR keywords LIKE '%".$keywords."%' ";}$row = $db->getone("SELECT COUNT(*) AS num FROM ".table('post')." WHERE 1=1 ".$condition); 回溯keywords 可控 $keywords = !empty($_REQUEST['keywords']) ? tri...
These statements allow you to perform an action when your stated condition is met. They are a critical part of writing a script in PHP. Over the next few sections, we will touch on three of these conditional statements. We will be touching on the “if“, “if...else“, “if...else...
词义 说明 eq 等于 equal ne,neq 不等于 not equal gt 大于 greater than lt 小于 less than get,ge 大于等于 great than or...= 0 Smarty 中的 if 语句和 php 中的 if 语句一样灵活易用,并增加了几个特性以适宜模板引擎,...
As false is a boolean value, its type is not the same as NULL, so the false condition is executed. Example Code: $foo = false; if($foo == NULL) { echo 'foo is null'; } else{ echo 'the condition is false'; } Output: foo is null Example Code: $foo = false; if($foo ...
EXPRESSION: ViewLanguage expressions. If helper functions are used as attribute values, they must be left undecorated:count(${asd})instead of${count(${asd})}. CONDITION: syntax is expected to be C-like, but ultimately matches that of language code is compiled into (in our case, PHP). Ex...
*/functionorLike($column, $value){$this->_where->orLike($column, $value);return$this; } 开发者ID:abcarroll,项目名称:DABL,代码行数:10,代码来源:Query.php 注:本文中的Condition::orLike方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目...
$shardingRuleConfig->add($tableRule); //表2规则 //user $tableRule = new ShardingTableRuleConfig(); $tableRule->setLogicTable('user'); $tableRule->setDatabaseShardingStrategyConfig( new InlineShardingStrategyConfiguration('db', [], function ($condition) { if (isset($condition['id']) && ...