PHP | IntlChar::charMirror() Function

PHP | mysqli_ping() Function

Last Updated : 18 Jan, 2022

The mysqli_ping() function is used to ping a server connection. That is it is used to check if a host is reachable on an IP network or not. This function also tries to reconnect if an existing server connection is lost. To use this function, it is mandatory to first set up the connection with the MySQL database.
This function can be used in both Object Oriented and Procedural styles as described below:

Object oriented style:
Syntax:

ping();

Parameters: This function does not accepts any parameter, it is used with a connection instance.
Return Value: This function returns True on success and False on failure.
Below program illustrate the ping() function in object-oriented style:

PHP

<?php
$servername = "localhost";
$username = "username";
$password = "password";
 
// Creating a connection
$conn = new mysqli($servername, $username, $password);
 
// Check connection
if ($conn->connect_error) {
    die("Connection to the server failed: " . $conn->connect_error);
} 
 
/* check if server is alive */
if ($conn->ping()) {
    printf ("Successful Connection!\n");
} else {
    printf ("Error: %s\n", $conn->error);
}
 
/* close connection */
$conn->close();
?>

Procedural style:
Syntax:

mysqli_ping($conn);

Parameters: This function accepts a single parameter $conn which represents the connection to use.
Return Value: This function returns True on success and False on failure.
Below program illustrate the mysqli_ping() in the procedural style:

PHP

<?php
$$servername = "localhost";
$username = "username";
$password = "password";
 
// Creating connection
$conn = mysqli_connect($servername, $username, $password);
 
// Checking connection
if (!$conn) {
    die("Connection to the server failed: " . mysqli_connect_error());
}
 
/* check if server is alive */
if (mysqli_ping($conn)) {
    printf ("Successful Connection!\n");
} else {
    printf ("Error: %s\n", mysqli_error($conn));
}
 
/* close connection */
mysqli_close($conn);
?>

Reference: http://php.net/manual/en/mysqli.ping.php

PHP | IntlChar::charMirror() Function

K

KRV

Improve

Article Tags :

Similar Reads

PHP | mysqli_error() Function

The mysqli_error() function is used to return the error in the most recent MySQL function call that failed. If there are multiple MySQL function calls, the error in the last statement is the one that is pointed out by the function. Syntax: mysqli_error("database_name") Parameters: This function acce

PHP | mysqli_close() Function

MySQLi Procedural procedure: To close the connection in mysql database we use php function mysqli_close() which disconnect from database. It require a parameter which is a connection returned by the mysql_connect function. Syntax: mysqli_close(conn); If the parameter is not specified in mysqli_close

PHP | mysqli_num_rows() Function

The mysqli_num_rows() function is an inbuilt function in PHP which is used to return the number of rows present in the result set. It is generally used to check if data is present in the database or not. To use this function, it is mandatory to first set up the connection with the MySQL database. Sy

PHP String Functions

Strings are a fundamental data type in PHP, used to store and manipulate text. PHP provides a wide variety of built-in string functions. These functions perform various operations such as string transformations, character manipulations, encoding and decoding, and formatting, making string handling s

PHP pi( ) Function

While solving mathematical problems we often come across questions which requires the value of π. Manually inserting the value of PI (π) can be time-consuming and erroneous. It is also not considered as a good programming practice. To solve this issue a built-in function of PHP pi() comes to a

PHP mysqli_connect() Function

The mysqli_connect() function in PHP is a fundamental tool for establishing a connection to a MySQL database. This function is crucial for PHP applications that need to interact with MySQL databases, enabling them to execute queries, retrieve data, and perform various database operations. In this ar

PHP sin( ) Function

Trigonometry is an important part of mathematics and PHP's math functions provides us with some functions which are very useful for calculations involving trigonometry. The sin()function in PHP is used to find the sine value of a number. The sine() function returns a float value between -1 and 1, wh

PHP min( ) Function

The min() function of PHP is used to find the lowest value in an array, or the lowest value of several specified values. The min() function can take an array or several numbers as an argument and return the numerically minimum value among the passed parameters. The return type is not fixed, it can b

PHP | Imagick pingImage() Function

The Imagick::pingImage() function is an inbuilt function in PHP which is used to get the basic attributes of the image. This method is used to query image width, height, size, and format without reading the whole image into memory. Syntax: bool Imagick::pingImage( $filename ) Parameters: This functi

PHP | inet_pton() Function

The inet_pton() function is an inbuilt function in PHP which converts a readable format IP address into a packed 32bit IPv4 or 128bit IPv6 address. Syntax: string inet_pton( string $ip_address ) Parameters: This function accepts single parameter as mentioned above and described below: $ip_address: I