PHP mysqli: connect_errno() function
mysqli_connect_errno() function / mysqli::$connect_errno
The mysqli_connect_errno() function / mysqli::$connect_errno returns the error code from the last connection error, if any.
Syntax:
Object oriented style
int $mysqli->connect_errno;
Procedural style
int mysqli_connect_errno ( void )
Usage: Procedural style
mysqli_commit(connection);
Return value:
An error code value for the last call to mysqli_connect(), if it failed. zero means no error occurred.
Version: PHP 5, PHP 7
Example of object oriented style:
<?php
$mysqli = @new mysqli('localhost', 'user1', 'datasoft123', 'hr');
if ($mysqli->connect_errno) {
die('Connect Error: ' . $mysqli->connect_errno);
}
?>
Example of procedural style:
<?php
$link = @mysqli_connect('localhost', 'user1', 'datasoft123', 'hr');
if (!$link) {
die('Connect Error: ' . mysqli_connect_errno());
}
?>
Output:
Connect Error: 1045
Example:
<?php
$con=mysqli_connect("localhost","user1","datasoft123","hr");
// Check connection
if (!$con)
{
die("Connection error: " . mysqli_connect_errno());
}
?>
Output:
Connection error: 0
See also
Previous: commit
Next: connect_error
PHP: Tips of the Day
Returns all elements in an array except for the first one
Example:
<?php function tips_tail($items) { return count($items) > 1 ? array_slice($items, 1) : $items; } print_r(tips_tail([1, 5, 7])); ?>
Output:
Array ( [0] => 5 [1] => 7 )
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