# errno

mysqli::\$errno

mysqli_errno

Returns the error code for the most recent function call

# 

ENTITY

ENTITY

int

mysqli-ENTITYerrno

ENTITY

int

mysqli_errno

mysqli

mysql

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

# 

ENTITY

# 

ENTITY

An error code value for the last call, if it failed. `0` means no error occurred.

# 

ENTITY

<div class="example">

<div class="title">

`$mysqli-ENTITYerrno` example

</div>

ENTITY

```
<?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("Errorcode: %d\n", $mysqli->errno);
}

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

   
```

ENTITY

```
<?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($link, "SET a=1")) {
    printf("Errorcode: %d\n", mysqli_errno($link));
}

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

   
```

ENTITY

    Errorcode: 1193

       

</div>

# 

ENTITY

`mysqli_connect_errno`, `mysqli_connect_error`, `mysqli_error`, `mysqli_sqlstate`