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vendor/swoole/examples/mysql/pdo_prepare2.php

@@ -0,0 +1,14 @@
+<?php
+$pdo = new PDO("mysql:host=127.0.0.1;dbname=test;charset=utf8", "root" ,"root");
+$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
+
+$sql = "SELECT * FROM  userinfo WHERE `id`=:id";
+$stmt = $pdo->prepare($sql); // 准备一条预处理语句
+
+// 占位符的使用方法一, 这样还可以便面sql注入
+$res = $stmt->execute(array(":id"=> 1)); 
+if (!$res){
+    echo exit("错误信息: ".var_dump($stmt->errorInfo()));
+}
+var_dump($stmt->rowCount());
+var_dump($stmt->fetchAll());