在wamp堆栈中运行php代码时mysql vs mysqli错误

Question

( mysql vs mysqli error (advait) )

Hi All, See code. This code runs on my localhost WAMP Win7 php ver 5.5.12 but it gives an error:

---
Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in C:\wamp\www\get_data02.php on line 9
Call Stack
#   Time    Memory  Function    Location
1   0.0010  135216  {main}( )   ..\get_data02.php:0
2   0.0010  135680  mysql_connect ( )   ..\get_data02.php:9
---

I tried replacing mysql with mysqli but that just gave more errors. How do I fix this? Thanks,

<?php
// 1. Enter Database details
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$dbname = 'iamdb_copy_04';
// 2. Create a database connection
$connection = mysql_connect($dbhost,$dbuser,$dbpass);
if (!$connection) {
    die("Database connection failed: " . mysql_error());
}
// 3. Select a database to use 
$db_select = mysql_select_db($dbname,$connection);
if (!$db_select) {
    die("Database selection failed: " . mysql_error());
}
$query = mysql_query("SELECT * FROM users WHERE city = 'city' ");

while ($rows = mysql_fetch_array($query)) { 
   $f_name = $rows['first_name'];
   $address_01 = $rows['address_01'];
   $city = $rows['city'];
   echo "$f_name<br>$address_01<br>$city<br><br>";      
} 
?>

Answer 1

There are two options to get out from this error.

1. Set display_errors off in php file using ini_set("display_errors",0) after start of php <?php .

2. Replace mysql with mysqli in mysql_connect , mysql_select_db , mysql_query , mysql_fetch_array .

Let me know if you still face any problem and also comment your error.