php，// 示例：使用 PDO 实现多条件查询，$sql = "SELECT * FROM table WHERE col1 = :value1 AND col2 = :value2";，$stmt = $pdo>prepare($sql);，$stmt>execute([':value1' => $value1, ':value2' => $value2]);，``php，// 示例：使用 PDO 实现多条件查询，$sql = "SELECT * FROM table WHERE col1 = :value1 AND col2 = :value2";，$stmt = $pdo>prepare($sql);，$stmt>execute([':value1' => $value1, ':value2' => $value2]);，``sql，{dede:sql variable='tag'}SELECT * FROM dede_archives WHERE tag = '[tag]'{/dede:sql}，`，，在这个例子中，variable='tag' 指定了SQL查询的变量名，而 [tag]` 是用于替换变量值的占位符。确保在使用前已正确配置和定义变量，以避免安全风险或错误结果。Powered By Z-BlogPHP 1.7.3
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