php 常用函数

<?php
//echo "1<br/>";
//die(‘当前程序出现故障‘);  //终止当前php运行
//echo "2<br/>";
//@$id = $_REQUEST[‘nid‘];
//echo $id;
$conn =    mysqli_connect(‘127.0.0.1‘,‘root‘,‘‘,‘bbs‘);
$sql = "INSERT INTO user VALUES(null,‘a‘,‘a‘,‘1.jpg‘,0,now())";
$result = mysqli_query($conn,$sql);
if($result===true){
    $id = mysqli_insert_id($conn);
    echo ‘新增记录编号是‘.$id.‘<br />‘;
    $size = mysqli_affected_rows($conn);
    echo ‘影响记录数‘.$size;
}

$sql = "SELECT * FROM user";
$result = mysqli_query($conn,$sql);
$rows = mysqli_fetch_all($result,MYSQLI_ASSOC);
echo "<hr/>";
foreach($rows as $k=>$v){
    //echo $k.‘<br />‘;
    echo $v[‘uid‘].$v[‘uname‘].$v[‘pic‘].‘<br />‘;
}
?>