PHP7.27: connect mysql 5.7 using new mysqli_connect
Posted ®Geovin Du Dream Park™
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了PHP7.27: connect mysql 5.7 using new mysqli_connect相关的知识，希望对你有一定的参考价值。
<!doctype html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta charset="utf-8"> <title>my sql</title> <meta name="keywords" content="geovindu"> <meta name="description" content="涂聚文"> </head> <body> <?php // php 7.27 mysql 5.7 geovindu 涂聚文 $mysql_conf = array( ‘host‘ => ‘127.0.0.1:3306‘, ‘db‘ => ‘sakila‘, ‘db_user‘ => ‘root‘, ‘db_pwd‘ => ‘888888‘, ); $link = mysqli_connect($mysql_conf[‘host‘],$mysql_conf[‘db_user‘], $mysql_conf[‘db_pwd‘],$mysql_conf[‘db‘]); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s ", mysqli_connect_error()); exit(); } $query = "select * from city ORDER BY city_id LIMIT 5;"; // 获取表格字段属性 if ($result = mysqli_query($link, $query)) { /* Get field information for all fields */ while ($finfo = mysqli_fetch_field($result)) { printf("Name: %s ", $finfo->name); printf("Table: %s ", $finfo->table); printf("max. Len: %d ", $finfo->max_length); printf("Flags: %d ", $finfo->flags); printf("Type: %d ", $finfo->type); echo("<br/>"); } mysqli_free_result($result); } // echo("<table border=‘1‘ align=‘center‘><tr align=‘center‘>"); // 显示字段名 if ($result = mysqli_query($link, $query)) { while($field=mysqli_fetch_field($result)) { echo("<td>".$field->name."</td>"); } mysqli_free_result($result); } echo("</tr>"); // 显示行数据 if ($resultrow = mysqli_query($link, $query)) { while($row=mysqli_fetch_row($resultrow)) { echo("<tr>"); for($i=0;$i<mysqli_field_count($link);$i++) { echo("<td>".$row[$i]."</td>"); } echo("</tr>"); } } echo("</table>"); /* close connection */ mysqli_close($link); ?> </body> </html>
<!doctype html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta charset="utf-8">
<title>my sql</title>
<meta name="keywords" content="geovindu">
<meta name="description" content="涂聚文">
</head>
<body>
<?php
// php 7.27 mysql 5.7
/*
character_set_client utf8
character_set_connection utf8
character_set_database utf8 -- 安装mysql时要设置的,所要考虑的
character_set_filesystem binary
character_set_results utf8
character_set_server utf8
character_set_system utf8
*/
session_start();
$mysql_conf = array(
‘host‘ => ‘127.0.0.1:3306‘,
‘db‘ => ‘sakila‘,
‘db_user‘ => ‘root‘,
‘db_pwd‘ => ‘770214‘,
);
// 连接无效
//http://php.net/manual/zh/function.mysql-connect.php 本扩展自 PHP 5.5.0 起已废弃，并在自 PHP 7.0.0 开始被移除
/*
$mysqli = mysqli_connect($mysql_conf[‘host‘],$mysql_conf[‘db_user‘], $mysql_conf[‘db_pwd‘],$mysql_conf[‘db‘]);
if(!$mysqli)
{
echo "Error: Unable to connect to MySQL." . PHP_EOL;
echo "Debugging errno: " . mysqli_connect_errno() . PHP_EOL;
echo "Debugging error: " . mysqli_connect_error() . PHP_EOL;
exit;//诊断连接错误
}
$mysqli->set_charset(‘utf8‘);
mysqli_query($mysqli,‘set names utf8‘);
*/
//Verbindungen zu mySQL aufbauen
$mysqli = new mysqli($mysql_conf[‘host‘],$mysql_conf[‘db_user‘], $mysql_conf[‘db_pwd‘],$mysql_conf[‘db‘]);
//Verbindung überprüfen
if ($mysqli -> connect_errno)
{
printf("无法建立连接数据库: %s
", $mysqli->connect_error);
exit();
}
//1.
/*
if (!$select_db) {
die("could not connect to the db:
" . $mysqli->error);
}
*/
//$mysqli->set_charset(‘utf8‘);
//mysqli_query($mysqli,‘set names utf8‘);
$mysqli->query("set names ‘utf8‘;");//编码转化
$sql = "select * from city where city_id = 601;";
// $res = $mysqli->query($sql);
//mysqli_query($con,"SELECT * FROM Persons");
//$result = $mysqli -> prepare($sql);
//$result -> execute();
$fcoun=mysqli_field_count($mysqli);
printf("geovindu");
echo("字段数：".$fcoun);
// 显示字段名称 where city_id = 601
echo("<table border=‘1‘ align=‘center‘><tr align=‘center‘>");
$sql = "select * from city where city_id = 601;";
//$res = $mysqli->query($sql);
/*
if ($res=mysqli_query($mysqli,$sql))
{
// 获取所有列的字段信息
while ($fieldinfo = mysqli_fetch_field($res)) {
printf("字段名: %s
", $fieldinfo->name);
echo "<br>";
printf("数据表: %s
", $fieldinfo->table);
echo "<br>";
printf("最大长度: %d
", $fieldinfo->max_length);
echo "<br>";
}
// 释放结果集
mysqli_free_result($res);
}
*/
/**/
if ($resultd = mysqli_query($mysqli, $sql))
{
// Get field information for all fields
while ($finfo = mysqli_fetch_field($resultd))
{
printf("Name: %s
", $finfo->name);
printf("Table: %s
", $finfo->table);
printf("max. Len: %d
", $finfo->max_length);
printf("Flags: %d
", $finfo->flags);
printf("Type: %d
", $finfo->type);
echo("<br/>");
}
mysqli_free_result($resultd);
}
// 显示字段名
if ($resfield = mysqli_query($mysqli, $sql))
{
while($field=mysqli_fetch_field($resfield))
{
echo("<td>".$field->name."</td>");
}
mysqli_free_result($resfield);
echo("</tr>");
}
//显示某行 where city_id = 601;
$sql = "select * from city";
$res =$mysqli->query($sql);// mysql_query($sql);
while($rowd=$res->fetch_row())
{
echo("<tr/>");
for($i=0;$i<$res->field_count;$i++)
{
//echo("<td>".$res->fields[‘city‘]."</td>");
echo("<td>".$rowd[$i]."</td>");
}
echo("</tr>");
}
echo("</table>");
//echo("hi,geovindu");
//
$sql = "select * from city";
$res = $mysqli->query($sql);//mysql_query($sql); //
while ($rowfield = mysqli_fetch_array($res,MYSQLI_ASSOC)) //MYSQLI_BOTH MYSQLI_NUM
{
echo($rowfield[‘city‘] . ‘ ‘ . $rowfield[‘country_id‘]."<br/>");
}
$res->free();
$mysqli->close();
mysqli_close($mysqli);
?>
</body>
</html>
以上是关于PHP7.27: connect mysql 5.7 using new mysqli_connect的主要内容，如果未能解决你的问题，请参考以下文章
php7.27: export excel from mysql
2003 - Can‘t connect to MySQL server on ‘10.211.55.5‘ (61 “Connection refused“)
MySQL驱动阅读------Connection连接的建立，基于JDBC-----5.1.26
2003 - Can‘t connect to MySQL server on ‘10.211.55.5‘ (61 “Connection refused“)