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mysqli_error

Returns a string description of the last error (PHP 5)
string mysqli_error ( mysqli link )

Procedural style:

Object oriented style (property)

mysqli {
  string error ;
}

Returns the last error message for the most recent MySQLi function call that can succeed or fail.

Parameters

link

Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

Return Values

A string that describes the error. An empty string if no error occurred.

Examples

Example 1487. Object oriented style

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

if (!
$mysqli->query("SET a=1")) {
   
printf("Errormessage: %s\n", $mysqli->error);
}

/* close connection */
$mysqli->close();
?>


Example 1488. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

if (!
mysqli_query($link, "SET a=1")) {
   
printf("Errormessage: %s\n", mysqli_error($link));
}

/* close connection */
mysqli_close($link);
?>


The above example will output:

Errormessage: Unknown system variable 'a'