PHP安装mysql.so扩展及相关PHP.ini 配置参数说明

Fatal error: Uncaught Error: Call to undefined function mysql_connect()

#安装mysql
apt-get install libmysqld-dev 
root@DK:/home/daokr/downfile/php-7.0.0/ext/mysqli

root@DK:/home/daokr/downfile/php-7.0.0/ext/mysqli# /home/php/bin/phpize

root@DK:/home/daokr/downfile/php-7.0.0/ext/mysqli# ./configure --help |grep mys
--with-mysqli=FILE Include MySQLi support. FILE is the path
to mysql_config. If no value or mysqlnd is passed
--enable-embedded-mysqli
--with-mysql-sock=SOCKPATH

root@DK:/usr/bin# find / -name "mysql_config"
/usr/bin/mysql_config

./configure --with-php-config=/home/php/bin/php-config --with-mysqli=/usr/bin/mysql_config

extension=mysql.so

service php-fpm restart

<?php
$con = mysql_connect('localhost','root','');
if($con){
die('ok');
}else{
die('Could not connect: ' . mysql_error());
}

$dbhost = 'localhost:3306'; // mysql服务器主机地址
$dbuser = 'daokrdb'; // mysql用户名
$dbpass = '123456'; // mysql用户名密码
$conn = mysqli_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
die('Could not connect: ' . mysqli_error());
}
echo '数据库连接成功！';
// 设置编码，防止中文乱码
mysqli_query($conn , "set names utf8"); //使用哪个个数据库
mysqli_select_db( $conn, 'daokrdb' );
$sql = 'SELECT * FROM t_users';
$retval = mysqli_query( $conn, $sql );
if(! $retval )
{
die('无法读取数据: ' . mysqli_error($conn));
}
echo '<table border="1" width="100%"><tr><td>教程 ID</td><td>标题</td><td>作者</td><td>提交日期</td></tr>';
while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
{
echo "<tr><td> {$row['id']}</td> ".
"<td>{$row['title']} </td> ".
"<td>{$row['author']} </td> ".
"<td>{$row['submission_date']} </td> ".
"</tr>";
}
echo '</table>';
mysqli_close($conn);