首页 > 代码库 > php if语句判定my查询是否为空

php if语句判定my查询是否为空

<?php header("Content-type: text/html; charset=utf-8");$username=$_GET[‘username‘];$psw=$_GET[‘password‘];$phone=$_GET[‘phone‘];include("../ini/inid.php");$select_admin=mysql_query(" select count(*) c from ofuseradmin where phone=‘".$phone."‘ ");//判定是否为空while($sa = mysql_fetch_array($select_admin)){if ($sa[‘c‘]==‘0‘){    mysql_query("INSERT INTO ofuseradmin (username,password,phone) VALUES (‘".$username."‘,‘".md5($psw)."‘,‘".$phone."‘)");$aid=mysql_query("select * from ofuseradmin where phone=‘".$phone."‘");while($aids = mysql_fetch_array($aid)){//echo $aids[‘aid‘];//echo "<br>";echo "<input type=‘text‘ value=http://www.mamicode.com/‘".$aids[‘aid‘]."‘ id=‘pid‘ name=‘aid‘>";}}//添加语句else{//echo "此组合已经存在!"; echo"<script>alert(‘此手机号已经存在!‘);history.go(-1);</script>";  }//include("../ini/inid.php");} ?>

 

php if语句判定my查询是否为空