大佬教程收集整理的这篇文章主要介绍了php – MySQLI Prepared Statement：num_rows&fetch_assoc，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
$mysqli = mysqli_connect($config['host'],$config['user'],$config['pass'],$config['db']); $stmt = $mysqli->prepare("SELECT * FROM licences WHERE generated = ?"); $stmt->bind_param('i',$core['id']); $result = $stmt->execute(); $stmt->store_result(); if ($stmt->num_rows >= "1") { while($data = $result->fetch_assoc()){ //Loop through results here $data[] } }else{ echo "0 records found"; }
我觉得有点厚颜无耻只是要求代码,但它是我的情况的工作演示,我觉得我需要最终了解实际发生了什么.太感谢了！
代码看起来有点不确定,但是它是如何工作的：
建立连接,准备一个语句,绑定参数并执行它,一切都很好.
$result = $stmt->execute(); //execute() tries to fetch a result set. Returns true on succes,false on failure. $stmt->store_result(); //store_result() "binds" the last given answer to the statement-object for... reasons. Now we can use it! if ($stmt->num_rows >= "1") { //Uses the stored result and counts the rows. while($data = $result->fetch_assoc()){ //And here,the answer-object is turned into an array-(object) // which can be worked with nicely. //It loops trough all entries in the array. } }else{ echo "0 records found"; }
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